TEDS Data Dictionary

Variables in the 26 Year Dataset

The table on this page lists all variables originating in data collections associated with the 26 Year study. This includes both item-level and derived variables.

The table does not include background variables that originate from other sources (either from admin data or from other study datasets). Such variables include IDs, twin sex and zygosity variables, the random variable and general exclusion variables. See the background variables page for details.

Variables are listed in alphabetical order in the table below. The columns of the table are:

Dataset variable name
Dataset variable label
Item or derived variable?
Source of data:
- mhq: twin Mental Health Questionnaire, also called TEDS26 (variable name prefix zmh)
- catslife: twin CATSLife web study (variable name prefix zc)
Data type:
- integer - numeric whole numbers
- decimal - numeric with fractional values
- time - time value in format hh:mm
- string - string of alphanumeric characters
Variable type:
- nominal - categorical, with arbitrary values
- ordinal - categorical, with ordered numeric values
- quantitative - numerical measurements of some concrete quantity
- scale - numerical measurement derived (usually) as a sum or mean of other variables
In some cases, these distinctions are arbitrary. Binary variables are categorized as ordinal if they are scores (0/1), and nominal otherwise.
Coding or range of values - this shows the value coding used for nominal/ordinal variables, or an approximate range of values for quantitative and scale variables.

dataset variable name	dataset variable label	item or derived variable?	source of data	data type	variable type	coding or approximate range of values
zcage1/2	Age of twin when CATSLife study activities started, years	derived	catslife	decimal	quantitative	approx 26 to 29 (years)
zcdata	CATSLife study twin data present for at least one twin in the pair, 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcdata1/2	CATSLife twin web study: data are present, 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcdurn1/2	CATSLife twin web study: overall duration from start to end, minutes	derived	catslife	decimal	quantitative	approx 15 to 30 (minutes)
zcLLCage1	Age of twin when CATSLife study activities started (for use in LLC TRE), months	derived	catslife	integer	quantitative	approx. 314 to 350 (months)
zcLLCdate1	Date when CATSLife study activities started (for use in LLC TRE), yyyy-mm string	derived	catslife	string	date value	approx. '2023-01' to '2023-10'
zcssas1/2	Spatial Spy: overall accuracy score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssbrows1/2	Spatial Spy: web browser used (CATSLife twin web study), see value labels	item	catslife	integer	nominal	1=Chrome, 2=Safari, 3=Mozilla, 4=Firefox
zcssdata1/2	Spatial Spy: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssdevmob1/2	Spatial Spy: was a mobile device used (CATSLife twin web study), 1Y 0N	derived	catslife	integer	nominal	0=no, 1=yes
zcssdevwdth1/2	Spatial Spy: device screen width/resolution category (CATSLife twin web study), see value labels	derived	catslife	integer	ordinal	1=small under 768, 2=medium 768-1199, 3=large 1200-1679, 4=very large 1680+ pixels
zcssdurn1/2	Spatial Spy: overall duration from start to end (CATSLife twin web study), minutes	derived	catslife	decimal	quantitative	approx 7 to 11 (minutes)
zcssfdbk11/2	Feedback item 1: distracted while doing activities (CATSLife twin web study), see value labels	item	catslife	integer	ordinal	1=strongly agree, 2=agree, 3=neutral, 4=disagree, 5=strongly disagree
zcssfdbk2a1/2	Feedback item 2a: distracted by sounds (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssfdbk2b1/2	Feedback item 2b: distracted by lights (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssfdbk2c1/2	Feedback item 2c: distracted by temperature (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssfdbk2d1/2	Feedback item 2d: social distractions (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssfdbk2e1/2	Feedback item 2e: other distractions (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssmn1as1/2	Spatial Spy: Map Reading No Memory mission 1: accuracy score (CATSLife twin web study), 0 to 2	derived	catslife	integer	scale	0 to 2
zcssmn1data1/2	Spatial Spy: Map Reading No Memory mission 1: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssmn1durn1/2	Spatial Spy: Map Reading No Memory mission 1: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 20 to 50 (seconds)
zcssmn1ss1/2	Spatial Spy: Map Reading No Memory mission 1: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmn1stat1/2	Spatial Spy: Map Reading No Memory mission 1: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssmn1ts1/2	Spatial Spy: Map Reading No Memory mission 1: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmn3as1/2	Spatial Spy: Map Reading No Memory mission 1: accuracy score (CATSLife twin web study), 0 to 2	derived	catslife	integer	scale	0 to 2
zcssmn3data1/2	Spatial Spy: Map Reading No Memory mission 3: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssmn3durn1/2	Spatial Spy: Map Reading No Memory mission 3: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 20 to 50 (seconds)
zcssmn3ss1/2	Spatial Spy: Map Reading No Memory mission 1: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmn3stat1/2	Spatial Spy: Map Reading No Memory mission 3: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssmn3ts1/2	Spatial Spy: Map Reading No Memory mission 1: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmn5as1/2	Spatial Spy: Map Reading No Memory mission 1: accuracy score (CATSLife twin web study), 0 to 2	derived	catslife	integer	scale	0 to 2
zcssmn5data1/2	Spatial Spy: Map Reading No Memory mission 5: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssmn5durn1/2	Spatial Spy: Map Reading No Memory mission 5: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 20 to 50 (seconds)
zcssmn5ss1/2	Spatial Spy: Map Reading No Memory mission 1: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmn5stat1/2	Spatial Spy: Map Reading No Memory mission 5: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssmn5ts1/2	Spatial Spy: Map Reading No Memory mission 1: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmnas1/2	Spatial Spy: Map Reading No Memory missions accuracy score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmnss1/2	Spatial Spy: Map Reading No Memory missions speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmnts1/2	Spatial Spy: Map Reading No Memory missions total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssmnXct1/2 [X=1/3/5]	Spatial Spy: Map Reading No Memory mission X [1/3/5]: completion time (CATSLife twin web study), seconds	item	catslife	decimal	quantitative	approx 20 to 40 (seconds)
zcssmnXr1/2 [X=1/3/5]	Spatial Spy: Map Reading No Memory mission X [1/3/5]: response code (CATSLife twin web study), see value labels	item	catslife	integer	nominal	-1=timed out, 1=completed indirectly, 2=completed directly without error
zcssmnXrt1/2 [X=1/3/5]	Spatial Spy: Map Reading No Memory mission X [1/3/5]: reaction time (CATSLife twin web study), seconds	item	catslife	decimal	quantitative	approx 0 to 10 (seconds)
zcssnact1/2	Spatial Spy: number of missions successfully completed (CATSLife twin web study), 1 to 9	derived	catslife	integer	ordinal	1 to 9
zcssod1as1/2	Spatial Spy: Orientation Direction mission 1: accuracy score (CATSLife twin web study), 0 to 3	derived	catslife	integer	scale	0 to 3
zcssod1data1/2	Spatial Spy: Orientation Direction mission 1: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssod1durn1/2	Spatial Spy: Orientation Direction mission 1: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 20 to 50 (seconds)
zcssod1ss1/2	Spatial Spy: Orientation Direction mission 1: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssod1stat1/2	Spatial Spy: Orientation Direction mission 1: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssod1ts1/2	Spatial Spy: Orientation Direction mission 1: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssod3as1/2	Spatial Spy: Orientation Direction mission 3: accuracy score (CATSLife twin web study), 0 to 3	derived	catslife	integer	scale	0 to 3
zcssod3data1/2	Spatial Spy: Orientation Direction mission 3: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssod3durn1/2	Spatial Spy: Orientation Direction mission 3: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 20 to 150 (seconds)
zcssod3ss1/2	Spatial Spy: Orientation Direction mission 3: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssod3stat1/2	Spatial Spy: Orientation Direction mission 3: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssod3ts1/2	Spatial Spy: Orientation Direction mission 3: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssod5as1/2	Spatial Spy: Orientation Direction mission 5: accuracy score (CATSLife twin web study), 0 to 3	derived	catslife	integer	scale	0 to 3
zcssod5data1/2	Spatial Spy: Orientation Direction mission 5: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssod5durn1/2	Spatial Spy: Orientation Direction mission 5: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 20 to 150 (seconds)
zcssod5ss1/2	Spatial Spy: Orientation Direction mission 5: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssod5stat1/2	Spatial Spy: Orientation Direction mission 5: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssod5ts1/2	Spatial Spy: Orientation Direction mission 5: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssodas1/2	Spatial Spy: Orientation Direction missions accuracy score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssodss1/2	Spatial Spy: Orientation Direction missions speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssodts1/2	Spatial Spy: Orientation Direction missions total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssodXtYct1/2 [X=1/3/5, Y=1/2/3]	Spatial Spy: Orientation Direction mission X [1/3/5] task Y [1/2/3]: completion time (CATSLife twin web study), seconds	item	catslife	decimal	quantitative	approx 5 to 20 (seconds)
zcssodXtYr1/2 [X=1/3/5, Y=1/2/3]	Spatial Spy: Orientation Direction mission X [1/3/5] task Y [1/2/3]: response code (CATSLife twin web study), see value labels	item	catslife	integer	nominal	-2=discontinued, -1=timed out, 0=failed, 1=success
zcssodXtYrt1/2 [X=1/3/5, Y=1/2/3]	Spatial Spy: Orientation Direction mission X [1/3/5] task Y [1/2/3]: reaction time (CATSLife twin web study), seconds	item	catslife	decimal	quantitative	approx 0 to 20 (seconds)
zcssol1as1/2	Spatial Spy: Orientation Landmarks mission 1: accuracy score (CATSLife twin web study), 0 to 3	derived	catslife	integer	scale	0 to 3
zcssol1data1/2	Spatial Spy: Orientation Landmarks mission 1: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssol1durn1/2	Spatial Spy: Orientation Landmarks mission 1: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 50 to 150 (seconds)
zcssol1ss1/2	Spatial Spy: Orientation Landmarks mission 1: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssol1stat1/2	Spatial Spy: Orientation Landmarks mission 1: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssol1ts1/2	Spatial Spy: Orientation Landmarks mission 1: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssol3as1/2	Spatial Spy: Orientation Landmarks mission 3: accuracy score (CATSLife twin web study), 0 to 3	derived	catslife	integer	scale	0 to 3
zcssol3data1/2	Spatial Spy: Orientation Landmarks mission 3: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssol3durn1/2	Spatial Spy: Orientation Landmarks mission 3: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 50 to 150 (seconds)
zcssol3ss1/2	Spatial Spy: Orientation Landmarks mission 3: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssol3stat1/2	Spatial Spy: Orientation Landmarks mission 3: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssol3ts1/2	Spatial Spy: Orientation Landmarks mission 3: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssol5as1/2	Spatial Spy: Orientation Landmarks mission 5: accuracy score (CATSLife twin web study), 0 to 3	derived	catslife	integer	scale	0 to 3
zcssol5data1/2	Spatial Spy: Orientation Landmarks mission 5: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zcssol5durn1/2	Spatial Spy: Orientation Landmarks mission 5: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 50 to 150 (seconds)
zcssol5ss1/2	Spatial Spy: Orientation Landmarks mission 5: speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssol5stat1/2	Spatial Spy: Orientation Landmarks mission 5: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssol5ts1/2	Spatial Spy: Orientation Landmarks mission 5: total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssolas1/2	Spatial Spy: Orientation Landmark missions accuracy score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssolss1/2	Spatial Spy: Orientation Landmark missions speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssolts1/2	Spatial Spy: Orientation Landmark missions total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssolXtYct1/2 [X=1/3/5, Y=1/2/3]	Spatial Spy: Orientation Landmarks mission X [1/3/5] task Y [1/2/3]: completion time (CATSLife twin web study), seconds	item	catslife	decimal	quantitative	approx 20 to 60 (seconds)
zcssolXtYr1/2 [X=1/3/5, Y=1/2/3]	Spatial Spy: Orientation Landmarks mission X [1/3/5] task Y [1/2/3]: response code (CATSLife twin web study), see value labels	item	catslife	integer	nominal	-2=discontinued, -1=timed out, 1=success
zcssolXtYrt1/2 [X=1/3/5, Y=1/2/3]	Spatial Spy: Orientation Landmarks mission X [1/3/5] task Y [1/2/3]: reaction time (CATSLife twin web study), seconds	item	catslife	decimal	quantitative	approx 0 to 20 (seconds)
zcssos1/2	Spatial Spy: operating system used (CATSLife twin web study), see value labels	item	catslife	integer	nominal	0=unknown, 1=iPhone, 3=Windows,4=Mac, 5=Linux
zcssss1/2	Spatial Spy: overall speed score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zcssstat1/2	Spatial Spy: overall status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 3=compromised (excluded)
zcssts1/2	Spatial Spy: overall total score (CATSLife twin web study), 0 to 1	derived	catslife	decimal	scale	0 to 1
zctdata1/2	Test My Brain: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zctdurn1/2	Test My Brain: overall duration from start to end (CATSLife twin web study), minutes	derived	catslife	decimal	quantitative	approx 7 to 20 (minutes)
zctmndata1/2	Test My Brain: Memorising Numbers test: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zctmndurn1/2	Test My Brain: Memorising Numbers test: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 100 to 400 (seconds)
zctmnstat1/2	Test My Brain: Memorising Numbers test: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 4=careless responder (excluded)
zctmntmd1/2	Test My Brain: Memorising Numbers test: median item response time (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 2 to 15 (seconds)
zctmntot1/2	Test My Brain: Memorising Numbers test: raw score: longest number string remembered (CATSLife twin web study), 1 to 11	item	catslife	integer	scale	1 to 11
zctmntotc1/2	Test My Brain: Memorising Numbers test: total score: number of correct responses (CATSLife twin web study), 0 to 20	derived	catslife	integer	scale	0 to 20
zctmnXXa1/2 [XX=01-20]	Test My Brain: Memorising Numbers test item XX [01-20]: answer given (CATSLife twin web study), string containing digits entered	item	catslife	string	nominal	string of numbers in order as entered
zctmnXXs1/2 [XX=01-20]	Test My Brain: Memorising Numbers test item XX [01-20]: score (CATSLife twin web study), 1=right 0=wrong	item	catslife	integer	ordinal	0=incorrect, 1=correct
zctmnXXt1/2 [XX=01-20]	Test My Brain: Memorising Numbers test item XX [01-20]: response time (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 1000 to 10000 (milliseconds)
zctmwdata1/2	Test My Brain: Memorising Words test: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zctmwdurn1/2	Test My Brain: Memorising Words test: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 80 to 200 (seconds)
zctmwstat1/2	Test My Brain: Memorising Words test: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 4=careless responder (excluded)
zctmwtmn1/2	Test My Brain: Memorising Words test: mean item response time (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 0 to 6 (seconds)
zctmwtot1/2	Test My Brain: Memorising Words test: total score (CATSLife twin web study), 0 to 25	item	catslife	integer	scale	0 to 25
zctmwXXa1/2 [XX=01-25]	Test My Brain: Memorising Words test item XX [01-25]: answer given (CATSLife twin web study), response options 1 to 4	item	catslife	integer	nominal	1 to 4
zctmwXXs1/2 [XX=01-25]	Test My Brain: Memorising Words test item XX [01-25]: score (CATSLife twin web study), 1=right 0=wrong	item	catslife	integer	ordinal	0=incorrect, 1=correct
zctmwXXt1/2 [XX=01-25]	Test My Brain: Memorising Words test item XX [01-25]: response time (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 400 to 9000 (milliseconds)
zctsna1n1/2	Test My Brain: Matching Shapes and Numbers test: number of items answered with response 1 (CATSLife twin web study)	item	catslife	integer	quantitative	approx 10 to 30 (items)
zctsna2n1/2	Test My Brain: Matching Shapes and Numbers test: number of items answered with response 2 (CATSLife twin web study)	item	catslife	integer	quantitative	approx 10 to 30 (items)
zctsna3n1/2	Test My Brain: Matching Shapes and Numbers test: number of items answered with response 3 (CATSLife twin web study)	item	catslife	integer	quantitative	approx 10 to 30 (items)
zctsnalltmn1/2	Test My Brain: Matching Shapes and Numbers test: mean response time for all responses (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 500 to 1000 (milliseconds)
zctsnatn1/2	Test My Brain: Matching Shapes and Numbers test: total number of items answered (CATSLife twin web study)	item	catslife	integer	scale	approx 40 to 100
zctsncorp1/2	Test My Brain: Matching Numbers and Shapes test: proportion of items attempted that were correct (CATSLife twin web study), 0 to 1	item	catslife	decimal	scale	approx 0.9 to 1
zctsncortmd1/2	Test My Brain: Matching Shapes and Numbers test: median response time for correct responses (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 500 to 1000 (milliseconds)
zctsncortmn1/2	Test My Brain: Matching Shapes and Numbers test: mean response time for correct responses (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 500 to 1000 (milliseconds)
zctsncortsd1/2	Test My Brain: Matching Shapes and Numbers test: SD of response time for correct responses (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 100 to 500 (milliseconds)
zctsndata1/2	Test My Brain: Matching Shapes and Numbers test: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zctsnstat1/2	Test My Brain: Matching Shapes and Numbers test: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 4=careless responder (excluded)
zctsntot1/2	Test My Brain: Matching Numbers and Shapes test: total score (CATSLife twin web study), number correctly answered within time limit	item	catslife	integer	scale	approx 40 to 90
zctstat1/2	Test My Brain: overall status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 4=careless responder (excluded)
zctvcdata1/2	Test My Brain: Vocabulary test: data are present (CATSLife twin web study), 1Y 0N	item	catslife	integer	nominal	0=no, 1=yes
zctvcdurn1/2	Test My Brain: Vocabulary test: duration from start to end (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 100 to 300 (seconds)
zctvcstat1/2	Test My Brain: Vocabulary test: status code (CATSLife twin web study), see value labels	derived	catslife	integer	nominal	0=not started, 2=completed, 4=careless responder (excluded)
zctvctmn1/2	Test My Brain: Vocabulary test: mean item response time (CATSLife twin web study), seconds	derived	catslife	decimal	quantitative	approx 0 to 6 (seconds)
zctvctot1/2	Test My Brain: Vocabulary test: total score (CATSLife twin web study), 0 to 20	item	catslife	integer	scale	0 to 20
zctvcXXa1/2 [XX=01-20]	Test My Brain: Vocabulary test item XX [01-20]: answer given (CATSLife twin web study), response options 1 to 5	item	catslife	integer	nominal	1 to 5
zctvcXXs1/2 [XX=01-20]	Test My Brain: Vocabulary test item XX [01-20]: score (CATSLife twin web study), 1=right 0=wrong	item	catslife	integer	ordinal	0=incorrect, 1=correct
zctvcXXt1/2 [XX=01-20]	Test My Brain: Vocabulary test item XX [01-20]: response time (CATSLife twin web study), milliseconds	item	catslife	decimal	quantitative	approx 1000 to 5000 (milliseconds)
zmhage1/2	Age of twin when TEDS26 MHQ started, years	item	mhq	decimal	quantitative	approx 24.5 to 28.5 (years)
zmhagora01a1/2	AGoD Agoraphobia item 1a: strong fear of public transport (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora01b1/2	AGoD Agoraphobia item 1b: strong fear of open spaces (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora01c1/2	AGoD Agoraphobia item 1c: strong fear of enclosed spaces (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora01d1/2	AGoD Agoraphobia item 1d: strong fear of being in crowd (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora01e1/2	AGoD Agoraphobia item 1e: strong fear of being outside alone (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora021/2	AGoD Agoraphobia item 2: how often did situations cause fear (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=once or twice, 2=some of the time, 3=almost always, 4=always
zmhagora03a1/2	AGoD Agoraphobia item 3a: avoided situations (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora03b1/2	AGoD Agoraphobia item 3b: endured with intense anxiety (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora03c1/2	AGoD Agoraphobia item 3c: required presence of companion (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora04a1/2	AGoD Agoraphobia item 4a: afraid of losing control (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora04b1/2	AGoD Agoraphobia item 4b: afraid of being unable to escape (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora04c1/2	AGoD Agoraphobia item 4c: afraid help unavailable (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora05a1/2	AGoD Agoraphobia item 5a: age in years when fears started (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	5, 6 up to 24, 25=25+ (years)
zmhagora05b1/2	AGoD Agoraphobia item 5b: age in years when most recently experienced (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	17=17 or less, 18, 19 up to 27, 28=28+ (years)
zmhagora05c1/2	AGoD Agoraphobia item 5c: longest time fears lasted (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 6 months, 2=6-12 months, 3=1-5 years, 4=5+ years, 5=all my life
zmhagora05d1/2	AGoD Agoraphobia item 5d: number of times had periods of fear (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1, 2, 3, 4, 5, 6, 7=7-9, 8=10-12, 9=13+ weeks, 10=all my life
zmhagora061/2	AGoD Agoraphobia item 6: how much have fears interfered (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=some, 3=a lot
zmhagora071/2	AGoD Agoraphobia item 7: were fears out of proportion (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08a1/2	AGoD Agoraphobia item 8a: treatment: prescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08b1/2	AGoD Agoraphobia item 8b: treatment: specific anxiety medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08c1/2	AGoD Agoraphobia item 8c: treatment: unprescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08d1/2	AGoD Agoraphobia item 8d: treatment: drugs or alcohol (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08e1/2	AGoD Agoraphobia item 8e: treatment: psychotherapy/talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08f1/2	AGoD Agoraphobia item 8f: treatment: structured wellbeing activity (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora08g1/2	AGoD Agoraphobia item 8g: treatment: regular exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora091/2	AGoD Agoraphobia item 9: NHS funded talking therapy (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=yes currently or yes currently and previously, 2=yes previously, 3=no
zmhagora10b1/2	AGoD Agoraphobia item 10b: was medication helpful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11a1/2	AGoD Agoraphobia item 11a: therapy: counselling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11b1/2	AGoD Agoraphobia item 11b: therapy: psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11c1/2	AGoD Agoraphobia item 11c: therapy: mindfulness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11e1/2	AGoD Agoraphobia item 11e: therapy: group therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11g1/2	AGoD Agoraphobia item 11g: therapy: guided self-help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11i1/2	AGoD Agoraphobia item 11i: therapy: CBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11m1/2	AGoD Agoraphobia item 11m: therapy: online therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11o1/2	AGoD Agoraphobia item 11o: therapy: other talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora11p1/2	AGoD Agoraphobia item 11p: therapy: other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora12a1/2	AGoD Agoraphobia item 12a: completed course of psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagora12b1/2	AGoD Agoraphobia item 12b: was psychotherapy useful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagoradiag1/2	Agoraphobia: diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhagoradurn1/2	AGoD Agoraphobia block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhagorapaus1/2	AGoD Agoraphobia block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhagorastat1/2	AGoD Agoraphobia block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhalco11/2	Alcohol Use item 1: ever had a drink (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhalco21/2	Alcohol Use item 2: age in years when first had drink (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 10, 2=10-12, 3=13-15, 4=16-18, 5=over 18
zmhalco31/2	Alcohol Use item 3: estimated number of units consumed on day of greatest drinking (TEDS26 twin MHQ)	derived	mhq	integer	quantitative	approx 0 to 120 (units)
zmhalco41/2	Alcohol Use item 4: how often have a drink (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=monthly or less, 2=2-4 times a month, 3=2-3 times a week, 4=4+ times a week
zmhalco51/2	Alcohol Use item 5: estimated number of units consumed on typical day drinking (TEDS26 twin MHQ)	item	mhq	integer	quantitative	approx 0 to 60 (units)
zmhalco6a1/2	Alcohol Use item 6a: six or more units (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than monthly, 2=monthly, 3=weekly, 4=daily
zmhalco6b1/2	Alcohol Use item 6b: unable to stop drinking (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than monthly, 2=monthly, 3=weekly, 4=daily
zmhalco6c1/2	Alcohol Use item 6c: unable to meet obligations (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than monthly, 2=monthly, 3=weekly, 4=daily
zmhalco6d1/2	Alcohol Use item 6d: drink first thing in morning (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than monthly, 2=monthly, 3=weekly, 4=daily
zmhalco6e1/2	Alcohol Use item 6e: remorse after drinking (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than monthly, 2=monthly, 3=weekly, 4=daily
zmhalco6f1/2	Alcohol Use item 6f: unable to remember after drinking (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than monthly, 2=monthly, 3=weekly, 4=daily
zmhalco6qcer1/2	Alcohol Use QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhalco7a1/2	Alcohol Use item 7a: injury resulting from drinking (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but not in past year, 2=yes once, 3=yes couple of times, 4=yes frequently
zmhalco7b1/2	Alcohol Use item 7b: others concerned about your drinking (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but not in past year, 2=yes once, 3=yes couple of times, 4=yes frequently
zmhalcoaudit1/2	Alcohol use AUDIT scale (TEDS26 twin MHQ), 0-40	derived	mhq	decimal	scale	0 to 40
zmhalcodurn1/2	Alcohol Use block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhalcopaus1/2	Alcohol Use block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhalcostat1/2	Alcohol Use block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhalcotime1/2	Alcohol Use time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 200 (seconds)
zmhaller11/2	Allergies item 1: any food allergies (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2a1/2	Allergies item 2a: allergy: peanuts (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2b1/2	Allergies item 2b: allergy: fish (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2d1/2	Allergies item 2d: allergy: tree nuts (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2e1/2	Allergies item 2e: allergy: eggs (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2f1/2	Allergies item 2f: allergy: fruit (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2g1/2	Allergies item 2g: allergy: sesame seeds (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2h1/2	Allergies item 2h: allergy: wheat or gluten (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2i1/2	Allergies item 2i: allergy: lactose (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2j1/2	Allergies item 2j: allergy: dairy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2k1/2	Allergies item 2k: allergy: shellfish (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2m1/2	Allergies item 2m: allergy: soya (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhaller2n1/2	Allergies item 2n: allergy: other food (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhatsdom11/2	ATS Domestic item 1: confiding relationship (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsdom21/2	ATS Domestic item 2: partner violence (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsdom31/2	ATS Domestic item 3: partner belittled me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsdom41/2	ATS Domestic item 4: partner sexual assault (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsdom51/2	ATS Domestic item 5: able to pay mortgage/rent (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsdomab1/2	ATS Domestic: abuse indicated in at least one item (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhatsdomfr11/2	ATS Domestic Frequency item 1: confiding relationship (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often true
zmhatsdomfr21/2	ATS Domestic Frequency item 2: partner violence (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often true
zmhatsdomfr31/2	ATS Domestic Frequency item 3: partner belittled me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often true
zmhatsdomfr41/2	ATS Domestic Frequency item 4: partner sexual assault (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often true
zmhatsdomfr51/2	ATS Domestic Frequency item 5: able to pay mortgage/rent (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often true
zmhatsdurn1/2	ATS block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhatsev11/2	ATS Events item 1: sexual assault (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsev21/2	ATS Events item 2: violent crime (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsev31/2	ATS Events item 3: serious accident (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsev41/2	ATS Events item 4: witnessed violent death (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsev51/2	ATS Events item 5: life-threatening illness (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=yes but not in last year, 2=yes in last year
zmhatsevab1/2	ATS Events: abuse indicated in at least one item (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhatspaus1/2	ATS block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhatsstat1/2	ATS block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhbdd11/2	DCQ BDD item 1: concerned about physical appearance (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdd21/2	DCQ BDD item 2: considered myself misshapen (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdd31/2	DCQ BDD item 3: considered self malfunctional (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdd41/2	DCQ BDD item 4: consulted professional (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdd51/2	DCQ BDD item 5: told you were normal (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdd61/2	DCQ BDD item 6: worried about physical defect (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdd71/2	DCQ BDD item 7: covering up defects (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=same as most, 2=more than most, 3=much more than most people
zmhbdddurn1/2	DCQ BDD block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhbddpaus1/2	DCQ BDD block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhbddqcer1/2	DCQ BDD QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbddstat1/2	DCQ BDD block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhbddt1/2	DCQ BDD total score (TEDS26 twin MHQ), 0-21	derived	mhq	decimal	scale	0 to 21
zmhbddtime1/2	DCQ BDD time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhbenf1/2	Demographics item: receive any benefits (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfcar1/2	Demographics item: receive benefit: carers allowance (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfch1/2	Demographics item: receive benefit: child benefit (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfdla1/2	Demographics item: receive benefit: DLA (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfesa1/2	Demographics item: receive benefit: ESA (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfhb1/2	Demographics item: receive benefit: housing benefit (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfpip1/2	Demographics item: receive benefit: PIP (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbenfuc1/2	Demographics item: receive benefit: UC (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhbmi1/2	Current twin BMI (TEDS26 twin MHQ), kilograms per square metre	derived	mhq	decimal	quantitative	approx 14 to 50 (kg per square metre)
zmhcann11/2	Cannabis Use item 1: how often used cannabis (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never used, 1=not in last year, 2=once or twice, 3=less than monthly, 4=monthly, 5=weekly, 6=daily
zmhcann21/2	Cannabis Use item 2: how many joints per day (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=1, 2=2-3, 3=4-5, 4=6 or more
zmhcann3a1/2	Cannabis Use item 3a: used before midday (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=from time to time, 3=fairly often, 4=often
zmhcann3b1/2	Cannabis Use item 3b: used when alone (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=from time to time, 3=fairly often, 4=often
zmhcann3c1/2	Cannabis Use item 3c: memory problems when using (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=from time to time, 3=fairly often, 4=often
zmhcann3d1/2	Cannabis Use item 3d: others suggested reduced use (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=from time to time, 3=fairly often, 4=often
zmhcann3e1/2	Cannabis Use item 3e: tried to reduce or stop (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=from time to time, 3=fairly often, 4=often
zmhcann3f1/2	Cannabis Use item 3f: problems because of use (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=from time to time, 3=fairly often, 4=often
zmhcann3qcer1/2	Cannabis Use QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcanndurn1/2	Cannabis Use block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 100 (seconds)
zmhcannpaus1/2	Cannabis Use block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhcannstat1/2	Cannabis Use block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhcanntime1/2	Cannabis Use time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhchild1/2	CoTEDS item: have any children (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia011/2	CIDIA item 1: ever worried for a month or longer (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia021/2	CIDIA item 2: worried more than other people (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia031/2	CIDIA item 3: longest period of worrying (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 1 month, 2=1, 3=2, 4=3, 5=4, 6=5, 7=6 (months), 8=6-12 months, 9=1-5 years, 10=5+ years, 11=all my life
zmhcidia04a1/2	CIDIA item 4a: period more than 6 months: number of times (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1, 2, 3, 4, 5, 6, 7=7-9, 8=10-12, 9=13+ weeks, 10=all my life
zmhcidia04b1/2	CIDIA item 4b: period more than 6 months: age in years first time (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	5, 6, 7 up to 26, 27=27+ (years)
zmhcidia04c1/2	CIDIA item 4c: period more than 6 months: age in years last time (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	17=17 or less, 18, 19 up to 27, 28=28+ (years)
zmhcidia05a1/2	CIDIA item 5a: period more than 1 month1: number of times (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1, 2, 3, 4, 5, 6, 7=7-9, 8=10-12, 9=13+ weeks, 10=all my life
zmhcidia05b1/2	CIDIA item 5b: period more than 1 month: age in years first time (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	10=10 or less, 11, 12 up to 26, 27=27+ (years)
zmhcidia05c1/2	CIDIA item 5c: period more than 1 month: age in years last time (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	18=18 or less, 19, 20 up to 27, 28=28+ (years)
zmhcidia06a1/2	CIDIA item 6a: was worry stronger than in others (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia06b1/2	CIDIA item 6b: did you worry most days (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia071/2	CIDIA item 7: worry about a particular thing (TEDS26 twin MHQ), 1=one thing 2=more than one	item	mhq	integer	nominal	1=one thing, 2=more than one thing
zmhcidia081/2	CIDIA item 8: found it difficult to stop (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia091/2	CIDIA item 9: different worries at the same time (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia10a1/2	CIDIA item 10a: how often was worry so strong (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often
zmhcidia10b1/2	CIDIA item 10b: how often was worry hard to control (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often
zmhcidia11a1/2	CIDIA item 11a: when worried: restless (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia11b1/2	CIDIA item 11b: when worried: keyed up (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia11c1/2	CIDIA item 11c: when worried: tired (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia11d1/2	CIDIA item 11d: when worried: trouble concentrating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia11e1/2	CIDIA item 11e: when worried: irritable (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia11f1/2	CIDIA item 11f: when worried: tense muscles (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia11g1/2	CIDIA item 11g: when worried: trouble sleeping (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia121/2	CIDIA item 12: ever tell professional (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13a1/2	CIDIA item 13a: treatment: prescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13b1/2	CIDIA item 13b: treatment: specific anxiety medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13c1/2	CIDIA item 13c: treatment: unprescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13d1/2	CIDIA item 13d: treatment: drugs or alcohol (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13e1/2	CIDIA item 13e: treatment: psychotherapy/talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13f1/2	CIDIA item 13f: treatment: structured wellbeing activity (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia13g1/2	CIDIA item 13g: treatment: regular exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia141/2	CIDIA item 14: NHS funded talking therapy (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=yes currently, 2=yes currently and previously, 3=yes previously, 4=no
zmhcidia15a1/2	CIDIA item 15a: took medication as advised (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia15b1/2	CIDIA item 15b: was medication helpful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16a1/2	CIDIA item 16a: therapy: counselling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16b1/2	CIDIA item 16b: therapy: psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16c1/2	CIDIA item 16c: therapy: mindfulness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16d1/2	CIDIA item 16d: therapy: relationship therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16e1/2	CIDIA item 16e: therapy: group therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16f1/2	CIDIA item 16f: therapy: EMDR (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16g1/2	CIDIA item 16g: therapy: guided self-help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16h1/2	CIDIA item 16h: therapy: family therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16i1/2	CIDIA item 16i: therapy: CBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16j1/2	CIDIA item 16j: therapy: DBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16k1/2	CIDIA item 16k: therapy: workshops (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16l1/2	CIDIA item 16l: therapy: CAT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16m1/2	CIDIA item 16m: therapy: online therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16n1/2	CIDIA item 16n: therapy: hypnotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16o1/2	CIDIA item 16o: therapy: other talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia16p1/2	CIDIA item 16p: therapy: other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia17a1/2	CIDIA item 17a: completed course of psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia17b1/2	CIDIA item 17b: was psychotherapy useful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidia181/2	CIDIA item 18: how much did problems interfere (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=some, 3=a lot
zmhcidiadiag1/2	CIDIA: Generalised Anxiety Disorder diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidiadurn1/2	CIDIA block duration if less than 900s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 900 (seconds)
zmhcidiapaus1/2	CIDIA block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhcidiastat1/2	CIDIA block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhcidid011/2	CIDID item 1: ever sad or depressed (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid021/2	CIDID item 2: ever lost interest in things (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid031/2	CIDID item 3: how much of the day (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=all day, 2=most of the day, 3=half the day, 4=less than half the day
zmhcidid041/2	CIDID item 4: how often did feelings occur (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=every day, 2=almost every day, 3=less often
zmhcidid051/2	CIDID item 5: more tired out than usual (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid06a1/2	CIDID item 6a: weight change (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=gained, 2=lost, 3=both gained and lost, 4=stayed the same
zmhcidid06b1/2	CIDID item 6b: weight change by 4kg or more (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid071/2	CIDID item 7: sleep change (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid07a1/2	CIDID item 7a: trouble falling asleep (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid07b1/2	CIDID item 7b: waking too early (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid07c1/2	CIDID item 7c: sleeping too much (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid07d1/2	CIDID item 7d: sleeping both too much and too little (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid081/2	CIDID item 8: change in appetite (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=no change, 2=increased, 3=decreased, 4=both increased and decreased
zmhcidid091/2	CIDID item 9: mood brighten with positive events (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid101/2	CIDID item 10: heavy feeling in limbs (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid111/2	CIDID item 11: sensitive to personal rejection (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=no, 2=yes with impaired relationships, 3=without impairment
zmhcidid121/2	CIDID item 12: time of day when mood was worse (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=morning, 2=afternoon, 3=at night, 4=did not vary
zmhcidid131/2	CIDID item 13: difficulty concentrating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid141/2	CIDID item 14: felt no good (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid151/2	CIDID item 15: thought about death (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid16a1/2	CIDID item 16a: unable to sit still (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid16b1/2	CIDID item 16b: slow moving/talking (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid16c1/2	CIDID item 16c: felt fatigued (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid17a1/2	CIDID item 17a: how long did feelings last (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 1 month, 2=1-3 months, 3=3-6 months, 4=6-12 months, 5=1-2 years, 6=over 2 years
zmhcidid17b1/2	CIDID item 17b: was it longest episode (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid181/2	CIDID item 18: longest period of depression (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 6 months, 2=6-12 months, 3=over 1 year
zmhcidid191/2	CIDID item 19: problems interfered with life (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=some, 3=a lot
zmhcidid201/2	CIDID item 20: number of periods of depression (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1, 2, 3, 4, 5, 6, 7=7-9, 8=10-12, 9=13+ weeks, 10=all my life
zmhcidid21a1/2	CIDID item 21a: age in years when first depressed (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	5, 6, 7 up to 26, 27=27+ (years)
zmhcidid21b1/2	CIDID item 21b: age in years when last depressed (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	17=17 or less, 18, 19 up to 27, 28=28+ (years)
zmhcidid221/2	CIDID item 22: episodes follow significant events (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=once, 2=more than once, 3=most
zmhcidid231/2	CIDID item 23: ever tell professional (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid24a1/2	CIDID item 24a: treatment: prescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid24b1/2	CIDID item 24b: treatment: unprescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid24c1/2	CIDID item 24c: treatment: drugs or alcohol (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid24d1/2	CIDID item 24d: treatment: psychotherapy/talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid24e1/2	CIDID item 24e: treatment: structured wellbeing activity (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid24f1/2	CIDID item 24f: treatment: regular exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid251/2	CIDID item 25: NHS funded talking therapy (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=yes currently, 2=yes currently and previously, 3=yes previously, 4=no
zmhcidid26a1/2	CIDID item 26a: took medication as advised (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid26b1/2	CIDID item 26b: was medication helpful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27a1/2	CIDID item 27a: therapy: counselling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27b1/2	CIDID item 27b: therapy: psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27c1/2	CIDID item 27c: therapy: mindfulness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27d1/2	CIDID item 27d: therapy: relationship therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27e1/2	CIDID item 27e: therapy: group therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27f1/2	CIDID item 27f: therapy: EMDR (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27g1/2	CIDID item 27g: therapy: guided self-help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27h1/2	CIDID item 27h: therapy: family therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27i1/2	CIDID item 27i: therapy: CBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27j1/2	CIDID item 27j: therapy: DBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27k1/2	CIDID item 27k: therapy: workshops (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27l1/2	CIDID item 27l: therapy: CAT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27m1/2	CIDID item 27m: therapy: online therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27n1/2	CIDID item 27n: therapy: hypnotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27o1/2	CIDID item 27o: therapy: other talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid27p1/2	CIDID item 27p: therapy: other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid28a1/2	CIDID item 28a: completed course of psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcidid28b1/2	CIDID item 28b: was psychotherapy useful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcididadiag1/2	CIDID: Atypical Depression diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcididdurn1/2	CIDID block duration if less than 900s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 900 (seconds)
zmhcididmdiag1/2	CIDID: Major Depressive Disorder diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcididpaus1/2	CIDID block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhcididstat1/2	CIDID block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhconn011/2	Conners item 1: attention to details (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn021/2	Conners item 2: make mistakes (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn031/2	Conners item 3: keeping mind on what I am doing (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn041/2	Conners item 4: keeping mind on what others saying (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn051/2	Conners item 5: following instructions (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn061/2	Conners item 6: finishing things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn071/2	Conners item 7: keeping organised (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn081/2	Conners item 8: doing things that require thought (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn091/2	Conners item 9: lose stuff (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn101/2	Conners item 10: distracted (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconn111/2	Conners item 11: forget stuff (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhconndurn1/2	Conners block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhconnpaus1/2	Conners block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhconnqcer1/2	Conners QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhconnstat1/2	Conners block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhconnt1/2	Conners overall Inattention score (TEDS26 twin MHQ), 0-33	derived	mhq	decimal	scale	0 to 33
zmhconntime1/2	Conners time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhcontra1a1/2	Hormonal Contraception item 1a: combined pill (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1b1/2	Hormonal Contraception item 1b: progesterone-only pill (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1c1/2	Hormonal Contraception item 1c: contraceptive injection (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1d1/2	Hormonal Contraception item 1d: coil (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1di1/2	Hormonal Contraception item 1di: coil: hormonal (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1e1/2	Hormonal Contraception item 1e: rhythm method (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1f1/2	Hormonal Contraception item 1f: fertility app (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1h1/2	Hormonal Contraception item 1h: condoms (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra1i1/2	Hormonal Contraception item 1i: other contraception (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra21/2	Hormonal Contraception item 2: ever used any hormonal method (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhcontra3a1/2	Hormonal Contraception item 3a: age in years when first used hormonal method (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	12=12 or less, 13-25, 26=26 or more
zmhcontra3b1/2	Hormonal Contraception item 3b: how many years used hormonal method (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0-14, 15=15 or more
zmhcontra4a1/2	Hormonal Contraception item 4a: used to avoid pregnancy (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not a reason, 1=one of the reasons, 2=major reason
zmhcontra4b1/2	Hormonal Contraception item 4b: used to control physical symptoms (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not a reason, 1=one of the reasons, 2=major reason
zmhcontra4c1/2	Hormonal Contraception item 4c: used to control emotional symptoms (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not a reason, 1=one of the reasons, 2=major reason
zmhcontra4d1/2	Hormonal Contraception item 4d: used to avoid side effects of others (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not a reason, 1=one of the reasons, 2=major reason
zmhcontradurn1/2	Hormonal Contraception and PMS block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhcontrapaus1/2	Hormonal Contraception and PMS block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhcontrastat1/2	Hormonal Contraception and PMS block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhcovid1/2	Medical History item: ever had covid-19 (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=unsure, 2=probably, 3=definitely
zmhcovidrec1/2	Medical History item: recovered from covid-19 (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=completely, 2=mostly, 3=partially, 4=not at all or getting worse
zmhctq11/2	CTQ item 1: felt loved (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often
zmhctq1r1/2	CTQ item 1: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	4=never, 3=rarely, 2=sometimes, 1=often, 0=very often
zmhctq21/2	CTQ item 2: family hit me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often
zmhctq31/2	CTQ item 3: family hated me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often
zmhctq41/2	CTQ item 4: sexually molested (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often
zmhctq51/2	CTQ item 5: someone to take me to doctor (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=rarely, 2=sometimes, 3=often, 4=very often
zmhctq5r1/2	CTQ item 5: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	4=never, 3=rarely, 2=sometimes, 1=often, 0=very often
zmhctqdurn1/2	CTQ block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 100 (seconds)
zmhctqpaus1/2	CTQ block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhctqstat1/2	CTQ block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhctqt1/2	CTQ total score (TEDS26 twin MHQ), 0-20	derived	mhq	decimal	scale	0 to 20
zmhdata	TEDS26 twin MHQ data present for at least one twin in the pair, 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhdata1/2	TEDS26 twin MHQ data present, 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhdemogdurn1/2	Demographics block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhdemogpaus1/2	Demographics block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhdemogstat1/2	Demographics block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed
zmhdiet1/2	Diet item: dietary requirements (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=vegan, 2=vegetarian, 3=pescatarian, 4=none of these
zmhdietdurn1/2	Diet and Food Allergies block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 50 (seconds)
zmhdietpaus1/2	Diet and Food Allergies block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhdietstat1/2	Diet and Food Allergies block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed
zmhduration1/2	Overall questionnaire duration (TEDS26 twin MHQ), minutes	derived	mhq	decimal	quantitative	approx 0 to 140 (minutes)
zmheatd011/2	Eating Disorders item 1: periods underweight (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd02a1/2	Eating Disorders item 2a: fear of weight gain (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd02b1/2	Eating Disorders item 2b: weight at lowest point (TEDS26 twin MHQ), kilograms	item	mhq	integer	quantitative	approx 25 to 75 (kg)
zmheatd02bmi1/2	Twin BMI when at lowest weight, assuming current height (TEDS26 twin MHQ), kilograms per square metre	derived	mhq	decimal	quantitative	approx 10 to 25 (kg per square metre)
zmheatd02c1/2	Eating Disorders item 2c: age in years when first at this weight (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	10=10 or less, 11, 12 up to 25, 26=26+ (years)
zmheatd02d1/2	Eating Disorders item 2d: age in years when last at this weight (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	13=13 or less, 14, 15 up to 26, 27=27+ (years)
zmheatd03a1/2	Eating Disorders item 3a: at low weight: fasted (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd03b1/2	Eating Disorders item 3b: at low weight: made self vomit (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd03c1/2	Eating Disorders item 3c: at low weight: diet pills (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd03d1/2	Eating Disorders item 3d: at low weight: compulsive exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd041/2	Eating Disorders item 4: recurrent binge eating (TEDS26 twin MHQ), see value labels	item	mhq	integer	0=no, 1=occasionally, 2=at least weekly for 3 months
zmheatd05a1/2	Eating Disorders item 5a: overeating during low weight (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd05b1/2	Eating Disorders item 5b: overeating at normal weight (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd05c1/2	Eating Disorders item 5c: no control over eating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd06a1/2	Eating Disorders item 6a: eating rapidly (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd06b1/2	Eating Disorders item 6b: eating until too full (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd06c1/2	Eating Disorders item 6c: eating when not hungry (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd06d1/2	Eating Disorders item 6d: eating alone (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd06e1/2	Eating Disorders item 6e: disgusted after eating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd071/2	Eating Disorders item 7: distressed about binge eating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd081/2	Eating Disorders item 8: age in years when first binge eating (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	10=10 or less, 11, 12 up to 26, 27=27+ (years)
zmheatd09a1/2	Eating Disorders item 9a: during binge eating: fasted (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd09b1/2	Eating Disorders item 9b: during binge eating: made self vomit (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd09c1/2	Eating Disorders item 9c: during binge eating: diet pills (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd09d1/2	Eating Disorders item 9d: during binge eating: compulsive exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd101/2	Eating Disorders item 10: self-esteem depends on body (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no or very little, 1=moderate amount, 2=a great deal
zmheatd11a1/2	Eating Disorders item 11a: at other times: fasted (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd11b1/2	Eating Disorders item 11b: at other times: made self vomit (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd11c1/2	Eating Disorders item 11c: at other times: diet pills (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd11d1/2	Eating Disorders item 11d: at other times: compulsive exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatd121/2	Eating Disorders item 12: age in years when first doing this (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	10=10 or less, 11, 12 up to 26, 27=27+ (years)
zmheatdandiag1/2	Eating disorders: Anorexia Nervosa diagnosis derived from items (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=no, 1=diagnosed without subtype, 2=restricting subtype, 3=purging or binge-eating subtype
zmheatdbediag1/2	Eating disorders: Binge-Eating Disorder diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatdbndiag1/2	Eating disorders: Bulimia Nervosa diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmheatddurn1/2	Eating Disorders block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmheatdpaus1/2	Eating Disorders block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmheatdstat1/2	Eating Disorders block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhecvul1/2	Demographics: economic vulnerability score (TEDS26 twin MHQ), 0-4	derived	mhq	integer	scale	0 to 4
zmhempinc1/2	Demographics item: monthly employment income (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-0.5k, 2=0.5-1k, 3=1-1.5k, 4=1.5-2k, 5=2-2.5k, 6=2.5-3k, 7=3-3.5k, 8=3.5-4k, 9=4k+ (pounds)
zmhempst1/2	Demographics item: employment status (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=FT employed, 2=PT employed, 3=self-employed, 4=unemployed, 5=home carer, 6=unable to work, 7=unpaid work, 8=student
zmhempzh1/2	Demographics item: employed on zero-hours contract (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhethnic1/2	Demographics item: ethnic group (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=white UK, 2=white Irish, 3=white other, 4=mixed white and black Caribbean, 5=mixed white and Asian, 6=other mixed, 7=Indian, 8=Pakistani, 9=Chinese, 10=other Asian, 11=African, 12=Caribbean, 13=any other ethnic group
zmhexer11/2	Exercise item 1: time spent: strenuous exercise (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-15, 2=16-60, 3=61-120, 4=121-180, 5=181+ minutes
zmhexer21/2	Exercise item 2: time spent: moderate exercise (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-15, 2=16-60, 3=61-120, 4=121-180, 5=181+ minutes
zmhexer31/2	Exercise item 3: time spent: mild exercise (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-15, 2=16-60, 3=61-120, 4=121-180, 5=181+ minutes
zmhexerdurn1/2	Exercise block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 100 (seconds)
zmhexerm1/2	Exercise weighted mean score (TEDS26 twin MHQ), 1-5	derived	mhq	decimal	scale	1 to 5
zmhexerpaus1/2	Exercise block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhexerqcer1/2	Exercise QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhexerstat1/2	Exercise block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhexertime1/2	Exercise time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 50 (seconds)
zmhgad11/2	GAD2 Current Anxiety item 1: Symptoms: nervous/anxious/on edge (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=several days, 2=most days, 3=every day
zmhgad21/2	GAD2 Current Anxiety item 2: Symptoms: unable to stop worrying (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=several days, 2=most days, 3=every day
zmhgaddurn1/2	GAD2 Current Anxiety block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 50 (seconds)
zmhgadpaus1/2	GAD2 Current Anxiety block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhgadstat1/2	GAD2 Current Anxiety block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhgadt1/2	GAD2 Current Anxiety overall total score (TEDS26 twin MHQ), 0-6	derived	mhq	integer	scale	0 to 6
zmhganx011/2	GAD10 item 1: moments of sudden terror (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx021/2	GAD10 item 2: felt anxious (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx031/2	GAD10 item 3: thoughts of bad things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx041/2	GAD10 item 4: racing heart (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx051/2	GAD10 item 5: tense muscles (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx061/2	GAD10 item 6: avoided situations (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx071/2	GAD10 item 7: left situations early (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx081/2	GAD10 item 8: put off decisions (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx091/2	GAD10 item 9: sought reassurance (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganx101/2	GAD10 item 10: needed help to cope (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=occasionally, 2=half the time, 3=most of the time, 4=all the time
zmhganxdurn1/2	GAD10 block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhganxpaus1/2	GAD10 block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhganxqcer1/2	GAD10 QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhganxstat1/2	GAD10 block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhganxt1/2	GAD10 (General Anxiety) overall total score (TEDS26 twin MHQ), 0-40	derived	mhq	decimal	scale	0 to 40
zmhganxtime1/2	GAD10 time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhgender1/2	Demographics item: gender identification (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=male, 2=female, 3=non-binary, 4=self-define
zmhheight1/2	Medical History item: height (TEDS26 twin MHQ), centimetres	item	mhq	integer	quantitative	approx 145 to 200 (cm)
zmhhqual1/2	Demographics item: highest qualification ordinal level (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=no qualifications, 2=GCSEs grades D-G, 3=1-4 GCSEs grades A-C, 4=5+ GCSEs grades A-C, 5=1 A-level, 6=2+ A-levels, 7=HNC/CertEd, 8=foundation degree, 9=batchelor degree, 10=masters degree, 11=doctoral degree
zmhicu11/2	ICU item 1: guilty after doing wrong (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu1r1/2	ICU item 1: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=definitely, 1=mainly, 2=somewhat, 3=not true
zmhicu21/2	ICU item 2: do not show emotions (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu31/2	ICU item 3: concerned about others feelings (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu3r1/2	ICU item 3: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=definitely, 1=mainly, 2=somewhat, 3=not true
zmhicu41/2	ICU item 4: do not care if in trouble (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu51/2	ICU item 5: do not care about doing well (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu61/2	ICU item 6: apologise if I hurt someone (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu6r1/2	ICU item 6: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=definitely, 1=mainly, 2=somewhat, 3=not true
zmhicu71/2	ICU item 7: do things to make others feel good (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=somewhat, 2=mainly, 3=definitely true
zmhicu7r1/2	ICU item 7: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=definitely, 1=mainly, 2=somewhat, 3=not true
zmhicucalt1/2	ICU Callous total score (TEDS26 twin MHQ), 0-9	derived	mhq	decimal	scale	0 to 9
zmhicudurn1/2	ICU block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 200 (seconds)
zmhicupaus1/2	ICU block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhicuqcer1/2	ICU QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhicustat1/2	ICU block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhicut1/2	ICU overall total score (TEDS26 twin MHQ), 0-21	derived	mhq	decimal	scale	0 to 21
zmhicutime1/2	ICU time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhicuunct1/2	ICU Uncaring total score (TEDS26 twin MHQ), 0-9	derived	mhq	decimal	scale	0 to 9
zmhlifev01n1/2	Life Events item 1 (negative): became homeless (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev02n1/2	Life Events item 2 (negative): left home (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev02p1/2	Life Events item 2 (positive): left home (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev03p1/2	Life Events item 3 (positive): graduated (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev04n1/2	Life Events item 4 (negative): pregnant (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev04p1/2	Life Events item 4 (positive): pregnant (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev05n1/2	Life Events item 5 (negative): new relationship (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev05p1/2	Life Events item 5 (positive): new relationship (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev06p1/2	Life Events item 6 (positive): outstanding achievement (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev07n1/2	Life Events item 7 (negative): family member ill (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev08n1/2	Life Events item 8 (negative): seriously ill (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev09p1/2	Life Events item 9 (positive): engaged (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev10p1/2	Life Events item 10 (positive): married (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev11n1/2	Life Events item 11 (negative): lost job (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev12n1/2	Life Events item 12 (negative): separated (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev13n1/2	Life Events item 13 (negative): legal trouble (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev14n1/2	Life Events item 14 (negative): someone close died (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev15n1/2	Life Events item 15 (negative): suicide attempt (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev16n1/2	Life Events item 16 (negative): abortion (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev17n1/2	Life Events item 17 (negative): road accident (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev18n1/2	Life Events item 18 (negative): new job (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev18p1/2	Life Events item 18 (positive): new job (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifev19n1/2	Life Events item 19 (negative): parents separated (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no negative effect, 2=yes somewhat negative, 3=yes negatively affected me a lot
zmhlifev20p1/2	Life Events item 20 (positive): came out (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=yes but no positive effect, 2=yes somewhat positive, 3=yes positively affected me a lot
zmhlifevdurn1/2	Life Events block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhlifevnat1/2	Life events: count of negative events that affected twin (TEDS26 twin MHQ), 0-15	derived	mhq	integer	ordinal	0 to 15
zmhlifevnnt1/2	Life events: count of negative events that occurred but did not affect twin (TEDS26 twin MHQ), 0-15	derived	mhq	integer	ordinal	0 to 15
zmhlifevpat1/2	Life events: count of positive events that affected twin (TEDS26 twin MHQ), 0-9	derived	mhq	integer	ordinal	0 to 9
zmhlifevpaus1/2	Life Events block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhlifevpnt1/2	Life events: count of positive events that occurred but did not affect twin (TEDS26 twin MHQ), 0-9	derived	mhq	integer	ordinal	0 to 9
zmhlifevqcer1/2	Life Events QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhlifevstat1/2	Life Events block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhlifevtime1/2	Life Events time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 200 (seconds)
zmhLLCage1	Age of twin when TEDS26 MHQ started (for use in LLC TRE), months	derived	mhq	integer	quantitative	approx. 296 to 342 (months)
zmhLLCdate1	Date when TEDS26 MHQ started (for use in LLC TRE), yyyy-mm string	derived	mhq	string	date value	approx. '2021-07' to '2023-04'
zmhmctqdurn1/2	MCTQ and PSQI block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhmctqfr11/2	MCTQ free days item 1: usual bed time (TEDS26 twin MHQ), hh:mm time	item	mhq	integer	time	00:00 to 23:45 (15 minute intervals)
zmhmctqfr21/2	MCTQ free days item 2: how long to fall asleep (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-5, 2=6-15, 3=16-30, 4=31-45, 5=46-60, 6=61-90, 7=91-120, 8=more than 120 minutes
zmhmctqfr31/2	MCTQ free days item 3: usual waking time (TEDS26 twin MHQ), hh:mm time	item	mhq	integer	time	00:00 to 23:45 (15 minute intervals)
zmhmctqfr41/2	MCTQ free days item 4: alarm clock (TEDS26 twin MHQ), 1with 2without	item	mhq	integer	nominal	1=with alarm, 2=without alarm
zmhmctqfr51/2	MCTQ free days item 5: how long in minutes to get up (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-5, 2=6-15, 3=16-30, 4=31-45, 5=46-60, 6=more than 60 minutes
zmhmctqfr61/2	MCTQ free days item 6: hours of actual sleep (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	3=3 or less, 4, 5, 6, 7, 8, 9, 10, 11, 12=12 or more
zmhmctqmstfr1/2	MCTQ derived mid-sleep time on free days (TEDS26 twin MHQ), hh:mm time	derived	mhq	time value	quantitative	approx. 02:00 to 06:00
zmhmctqmstwk1/2	MCTQ derived mid-sleep time on work days (TEDS26 twin MHQ), hh:mm time	derived	mhq	time value	quantitative	approx. 02:00 to 06:00
zmhmctqpaus1/2	MCTQ and PSQI block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhmctqsc1/2	MCTQ score: overall mid-sleep time (TEDS26 twin MHQ), hh:mm time	derived	mhq	time value	quantitative	approx. 02:00 to 06:00
zmhmctqsdurfr1/2	MCTQ derived sleep duration on free days (TEDS26 twin MHQ), hours	derived	mhq	decimal	quantitative	approx. 6 to 12 (hours)
zmhmctqsdurwk1/2	MCTQ derived sleep duration on work days (TEDS26 twin MHQ), hours	derived	mhq	decimal	quantitative	approx. 6 to 10 (hours)
zmhmctqstat1/2	MCTQ and PSQI block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhmctqwk11/2	MCTQ work days item 1: usual bed time (TEDS26 twin MHQ), hh:mm time	item	mhq	integer	time	00:00 to 23:45 (15 minute intervals)
zmhmctqwk21/2	MCTQ work days item 2: how long to fall asleep (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-5, 2=6-15, 3=16-30, 4=31-45, 5=46-60, 6=61-90, 7=91-120, 8=more than 120 minutes
zmhmctqwk31/2	MCTQ work days item 3: usual waking time (TEDS26 twin MHQ), hh:mm time	item	mhq	integer	time	00:00 to 23:45 (15 minute intervals)
zmhmctqwk41/2	MCTQ work days item 4: alarm clock (TEDS26 twin MHQ), 1with 2without	item	mhq	integer	nominal	1=with alarm, 2=without alarm
zmhmctqwk51/2	MCTQ work days item 5: how long in minutes to get up (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=0-5, 2=6-15, 3=16-30, 4=31-45, 5=46-60, 6=more than 60 minutes
zmhmctqwk61/2	MCTQ work days item 6: hours of actual sleep (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	3=3 or less, 4, 5, 6, 7, 8, 9, 10, 11, 12=12 or more
zmhmctqwkdys1/2	MCTQ item: days work per week (TEDS26 twin MHQ), 0 to 7 (days)	item	mhq	integer	quantitative	0 to 7 (days)
zmhmdq1a1/2	MDQ Mania item 1a: symptoms: hyper (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1b1/2	MDQ Mania item 1b: symptoms: irritable (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1c1/2	MDQ Mania item 1c: symptoms: self-confident (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1count1/2	MDQ: count of mania symptoms reported in question 1 (TEDS26 twin MHQ), 0-13	derived	mhq	integer	ordinal	0 to 13
zmhmdq1d1/2	MDQ Mania item 1d: symptoms: loss of sleep (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1e1/2	MDQ Mania item 1e: symptoms: talkative (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1f1/2	MDQ Mania item 1f: symptoms: racing thoughts (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1g1/2	MDQ Mania item 1g: symptoms: distracted (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1h1/2	MDQ Mania item 1h: symptoms: excess energy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1i1/2	MDQ Mania item 1i: symptoms: very active (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1j1/2	MDQ Mania item 1j: symptoms: very outgoing (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1k1/2	MDQ Mania item 1k: symptoms: sexual interest (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1l1/2	MDQ Mania item 1l: symptoms: excessive actions (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq1m1/2	MDQ Mania item 1m: symptoms: spending trouble (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq21/2	MDQ Mania item 2: several symptoms at the same time (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3a1/2	MDQ Mania item 3a: occurred simultaneously: hyper (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3b1/2	MDQ Mania item 3b: occurred simultaneously: irritable (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3c1/2	MDQ Mania item 3c: occurred simultaneously: self-confident (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3count1/2	MDQ: count of co-occurring mania symptoms reported in question 3 (TEDS26 twin MHQ), 2-13	derived	mhq	integer	ordinal	2 to 13
zmhmdq3d1/2	MDQ Mania item 3d: occurred simultaneously: loss of sleep (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3e1/2	MDQ Mania item 3e: occurred simultaneously: talkative (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3f1/2	MDQ Mania item 3f: occurred simultaneously: racing thoughts (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3g1/2	MDQ Mania item 3g: occurred simultaneously: distracted (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3h1/2	MDQ Mania item 3h: occurred simultaneously: excess energy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3i1/2	MDQ Mania item 3i: occurred simultaneously: very active (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3j1/2	MDQ Mania item 3j: occurred simultaneously: very outgoing (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3k1/2	MDQ Mania item 3k: occurred simultaneously: sexual interest (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3l1/2	MDQ Mania item 3l: occurred simultaneously: excessive actions (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq3m1/2	MDQ Mania item 3m: occurred simultaneously: spending trouble (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq4a1/2	MDQ Mania item 4a: longest period of highs (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=a day or less, 2=1-7 days, 3=a week or more
zmhmdq4b1/2	MDQ Mania item 4b: how much of a problem (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=minor, 2=moderate, 3=serious problem
zmhmdq5a1/2	MDQ Mania item 5a: professional diagnosis of mania (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq5b1/2	MDQ Mania item 5b: relatives with diagnosis of mania (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq6a1/2	MDQ Mania item 6a: also diagnosed with psychosis (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdq6b1/2	MDQ Mania item 6b: psychosis was primary symptom (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmdqdurn1/2	MDQ Mania block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhmdqhypdiag1/2	MDQ: Hypomania diagnosis derived from items (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=no, 1=yes less stringent, 2=yes stringent
zmhmdqmandiag1/2	MDQ: Mania diagnosis derived from items (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=no, 1=yes less stringent, 2=yes stringent
zmhmdqmanscr1/2	MDQ: basic mania screener derived from items (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=no, 1=yes less stringent, 2=yes stringent
zmhmdqpaus1/2	MDQ Mania block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhmdqstat1/2	MDQ Mania block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhmedhisdurn1/2	Medical History block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhmedhispaus1/2	Medical History block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhmedhisstat1/2	Medical History block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhmfq011/2	MFQ item 1: miserable (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq021/2	MFQ item 2: did not enjoy anything (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq031/2	MFQ item 3: tired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq041/2	MFQ item 4: restless (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq051/2	MFQ item 5: felt no good (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq061/2	MFQ item 6: cried a lot (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq071/2	MFQ item 7: hard to concentrate (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq081/2	MFQ item 8: hated myself (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq091/2	MFQ item 9: bad person (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq101/2	MFQ item 10: lonely (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq111/2	MFQ item 11: nobody loved me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq121/2	MFQ item 12: never be as good as others (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfq131/2	MFQ item 13: did everything wrong (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=sometimes true, 2=true
zmhmfqdurn1/2	MFQ block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhmfqpaus1/2	MFQ block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhmfqqcer1/2	MFQ QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmfqstat1/2	MFQ block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhmfqt1/2	MFQ overall total score (TEDS26 twin MHQ), 0-26	derived	mhq	decimal	scale	0 to 26
zmhmfqtime1/2	MFQ time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhmhdbpd1/2	General Mental Health item: borderline personality disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddis1/2	General Mental Health item: ever suffered mental distress (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddurn1/2	General Mental Health block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhmhddx1a1/2	General Mental Health item 1a: diagnosed: depression (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1b1/2	General Mental Health item 1b: diagnosed: premenstrual dysphoric disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1c1/2	General Mental Health item 1c: diagnosed: mania/hypomania/bipolar/manic-depression (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1d1/2	General Mental Health item 1d: diagnosed: generalised anxiety disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1e1/2	General Mental Health item 1e: diagnosed: anxiety/nerves/stress (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1f1/2	General Mental Health item 1f: diagnosed: social anxiety/phobia (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1g1/2	General Mental Health item 1g: diagnosed: specific phobia (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1h1/2	General Mental Health item 1h: diagnosed: agoraphobia (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1i1/2	General Mental Health item 1i: diagnosed: panic disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1j1/2	General Mental Health item 1j: diagnosed: panic attacks (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1k1/2	General Mental Health item 1k: diagnosed: PTSD (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1l1/2	General Mental Health item 1l: diagnosed: OCD (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1m1/2	General Mental Health item 1m: diagnosed: BDD (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx1n1/2	General Mental Health item 1n: diagnosed: other obsessive-compulsive (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2a1/2	General Mental Health item 2a: diagnosed: anorexia nervosa (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2b1/2	General Mental Health item 2b: diagnosed: bulimia nervosa (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2c1/2	General Mental Health item 2c: diagnosed: pschological over-eating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2d1/2	General Mental Health item 2d: diagnosed: binge-eating disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2e1/2	General Mental Health item 2e: diagnosed: other eating disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2f1/2	General Mental Health item 2f: diagnosed: other psychotic illness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2g1/2	General Mental Health item 2g: diagnosed: personality disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2h1/2	General Mental Health item 2h: diagnosed: ASD (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2i1/2	General Mental Health item 2i: diagnosed: ADD/ADHD (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2j1/2	General Mental Health item 2j: diagnosed: dyslexia/dyspraxia (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhddx2k1/2	General Mental Health item 2k: diagnosed: other disorder (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhdpaus1/2	General Mental Health block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhmhdprof1/2	General Mental Health item: ever had professional help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhmhdstat1/2	General Mental Health block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhneet1/2	Demographics: NEET (not in education/employment/training) (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhpanic01a1/2	AGoD Panic Disorder item 1a: symptom: heart pounding (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01b1/2	AGoD Panic Disorder item 1b: symptom: sweating (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01c1/2	AGoD Panic Disorder item 1c: symptom: trembling/shaking (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01d1/2	AGoD Panic Disorder item 1d: symptom: short of breath (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01e1/2	AGoD Panic Disorder item 1e: symptom: felt like choking (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01f1/2	AGoD Panic Disorder item 1f: symptom: chest pain (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01g1/2	AGoD Panic Disorder item 1g: symptom: nauseous (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01h1/2	AGoD Panic Disorder item 1h: symptom: dizzy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01i1/2	AGoD Panic Disorder item 1i: symptom: hot or cold (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01j1/2	AGoD Panic Disorder item 1j: symptom: numb or tingling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01k1/2	AGoD Panic Disorder item 1k: symptom: felt detached (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01l1/2	AGoD Panic Disorder item 1l: symptom: losing control (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic01m1/2	AGoD Panic Disorder item 1m: symptom: afraid of dieing (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic021/2	AGoD Panic Disorder item 2: how many panic attacks (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0, 1, 2, 3, 4, 5, 6=6-9, 7=10-14, 8=15-19, 9=20-29, 10=30-49, 11=50-99, 12=100-199, 13=200-499, 14=500-998, 15=999+
zmhpanic03a1/2	AGoD Panic Disorder item 3a: worried about more panic (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic03b1/2	AGoD Panic Disorder item 3b: worried about losing control (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic03c1/2	AGoD Panic Disorder item 3c: avoided situations (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic041/2	AGoD Panic Disorder item 4: how long did you worry (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 1 month, 2=1-6 months, 3=6-12 months, 4=more than 12 months, 5=1-5 years, 6=5+ years, 7=all my life
zmhpanic051/2	AGoD Panic Disorder item 5: how many periods lasting a month or more (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1, 2, 3, 4, 5, 6, 7=7-9, 8=10-12, 9=13+ weeks, 10=all my life
zmhpanic061/2	AGoD Panic Disorder item 6: panic was result of medical condition (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=some, 2=all of them
zmhpanic071/2	AGoD Panic Disorder item 7: specific situations caused panic (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic081/2	AGoD Panic Disorder item 8: panic when not in a situation (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic09a1/2	AGoD Panic Disorder item 9a: age in years when first had panic (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	5, 6 up to 26, 27=27+ years
zmhpanic09b1/2	AGoD Panic Disorder item 9b: age in years when last had panic (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	17=17 or less, 18, 19 up to 27, 28=28+ (years)
zmhpanic10a1/2	AGoD Panic Disorder item 10a: treatment: prescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic10b1/2	AGoD Panic Disorder item 10b: treatment: specific anxiety medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic10c1/2	AGoD Panic Disorder item 10c: treatment: unprescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic10d1/2	AGoD Panic Disorder item 10d: treatment: drugs or alcohol (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic10e1/2	AGoD Panic Disorder item 10e: treatment: psychotherapy/talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic10f1/2	AGoD Panic Disorder item 10f: treatment: structured wellbeing activity (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic10g1/2	AGoD Panic Disorder item 10g: treatment: regular exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic111/2	AGoD Panic Disorder item 11: NHS funded talking therapy (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=yes currently, 2=yes currently and previously, 3=yes previously, 4=no
zmhpanic12a1/2	AGoD Panic Disorder item 12a: took medication as advised (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic12b1/2	AGoD Panic Disorder item 12b: was medication helpful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13a1/2	AGoD Panic Disorder item 13a: therapy: counselling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13b1/2	AGoD Panic Disorder item 13b: therapy: psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13c1/2	AGoD Panic Disorder item 13c: therapy: mindfulness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13e1/2	AGoD Panic Disorder item 13e: therapy: group therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13f1/2	AGoD Panic Disorder item 13f: therapy: EMDR (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13g1/2	AGoD Panic Disorder item 13g: therapy: guided self-help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13h1/2	AGoD Panic Disorder item 13h: therapy: family therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13i1/2	AGoD Panic Disorder item 13i: therapy: CBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13j1/2	AGoD Panic Disorder item 13j: therapy: DBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13k1/2	AGoD Panic Disorder item 13k: therapy: workshops (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13m1/2	AGoD Panic Disorder item 13m: therapy: online therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13n1/2	AGoD Panic Disorder item 13n: therapy: hypnotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13o1/2	AGoD Panic Disorder item 13o: therapy: other talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic13p1/2	AGoD Panic Disorder item 13p: therapy: other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic14a1/2	AGoD Panic Disorder item 14a: completed course of psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanic14b1/2	AGoD Panic Disorder item 14b: was psychotherapy useful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanicdiag1/2	Panic Disorder: diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpanicdurn1/2	AGoD Panic Disorders block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhpanicpaus1/2	AGoD Panic Disorders block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhpanicstat1/2	AGoD Panic Disorders block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhpaper1/2	Completed the questionnaire on paper (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpaused1/2	Questionnaire paused and took over 3 hours (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhpauses1/2	Number of pauses or lengthy blocks in the entire questionnaire (TEDS26 twin MHQ)	derived	mhq	integer	quantitative	approx 0 to 20 (pauses)
zmhpcl11/2	PCL6 item 1: disturbing memories (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhpcl21/2	PCL6 item 2: upsetting reminders (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhpcl31/2	PCL6 item 3: avoided situations (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhpcl41/2	PCL6 item 4: feeling cut off (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhpcl51/2	PCL6 item 5: angry outbursts (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhpcl61/2	PCL6 item 6: difficulty concentrating (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhpcldurn1/2	PCL6 block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhpclpaus1/2	PCL6 block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhpclstat1/2	PCL6 block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhpclt1/2	PCL6 total score (TEDS26 twin MHQ), 0-24	derived	mhq	decimal	scale	0 to 24
zmhphq011/2	PHQ-15 item 1: stomach pain (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq021/2	PHQ-15 item 2: back pain (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq031/2	PHQ-15 item 3: limb pain (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq041/2	PHQ-15 item 4: menstrual pain (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq051/2	PHQ-15 item 5: headaches (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq061/2	PHQ-15 item 6: chest pain (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq071/2	PHQ-15 item 7: dizziness (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq081/2	PHQ-15 item 8: fainting spells (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq091/2	PHQ-15 item 9: heart pounding (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq101/2	PHQ-15 item 10: short of breath (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq111/2	PHQ-15 item 11: sexual intercourse pain (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq121/2	PHQ-15 item 12: bowel problems (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq131/2	PHQ-15 item 13: indigestion (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq141/2	PHQ-15 item 14: tired or low energy (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphq151/2	PHQ-15 item 15: trouble sleeping (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=a lot (bothered)
zmhphqdep11/2	PHQ2 Current Depression item 1: Symptoms: little pleasure (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=several days, 2=most days, 3=every day
zmhphqdep21/2	PHQ2 Current Depression item 2: Symptoms: depressed (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=several days, 2=most days, 3=every day
zmhphqdepdurn1/2	PHQ2 Current Depression block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 50 (seconds)
zmhphqdeppaus1/2	PHQ2 Current Depression block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhphqdepstat1/2	PHQ2 Current Depression block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhphqdept1/2	PHQ2 Current Depression overall total score (TEDS26 twin MHQ), 0-6	derived	mhq	integer	scale	0 to 6
zmhphqdurn1/2	PHQ-15 block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhphqpaus1/2	PHQ-15 block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhphqqcer1/2	PHQ-15 QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphqstat1/2	PHQ-15 block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhphqt1/2	PHQ-15 total score (TEDS26 twin MHQ), 0-30	derived	mhq	decimal	scale	0 to 30
zmhphqtime1/2	PHQ-15 time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhphy1a1/2	Physical Illness Diagnoses item 1a: epilepsy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy1b1/2	Physical Illness Diagnoses item 1b: migraines (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy1d1/2	Physical Illness Diagnoses item 1d: asthma (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2a1/2	Physical Illness Diagnoses item 2a: hay fever (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2b1/2	Physical Illness Diagnoses item 2b: osteoarthritis (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2c1/2	Physical Illness Diagnoses item 2c: rheumatoid arthritis (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2d1/2	Physical Illness Diagnoses item 2d: other arthritis (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2e1/2	Physical Illness Diagnoses item 2e: penicillin allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2f1/2	Physical Illness Diagnoses item 2f: amoxicillin allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2g1/2	Physical Illness Diagnoses item 2g: other antibiotic allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2h1/2	Physical Illness Diagnoses item 2h: painkiller allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2i1/2	Physical Illness Diagnoses item 2i: other drug allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2j1/2	Physical Illness Diagnoses item 2j: animal or fur allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2k1/2	Physical Illness Diagnoses item 2k: dust, mites or mould allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2l1/2	Physical Illness Diagnoses item 2l: plasters or latex allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2m1/2	Physical Illness Diagnoses item 2m: stings allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2n1/2	Physical Illness Diagnoses item 2n: cosmetics or detergent allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy2o1/2	Physical Illness Diagnoses item 2o: other non-food allergy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy3a1/2	Physical Illness Diagnoses item 3a: psoriasis (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy3b1/2	Physical Illness Diagnoses item 3b: vitiligo (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy3c1/2	Physical Illness Diagnoses item 3c: eczema (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy3d1/2	Physical Illness Diagnoses item 3d: thyroid disease (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	0=none, 1=hypothyroidism, hyperthyroidism
zmhphy4a1/2	Physical Illness Diagnoses item 4a: inflammatory bowel disease (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy4b1/2	Physical Illness Diagnoses item 4b: coeliac disease (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphy4c1/2	Physical Illness Diagnoses item 4c: diabetes type 1 (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhphydurn1/2	Physical Illness Diagnosis block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 100 (seconds)
zmhphypaus1/2	Physical Illness Diagnosis block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhphystat1/2	Physical Illness Diagnosis block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhpms11/2	Premenstual Symptoms item 1: frustrated with symptoms (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=a little, 2=some, 3=most, 4=all of the time
zmhpms21/2	Premenstual Symptoms item 2: mood swings (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=a little, 2=some, 3=most, 4=all of the time
zmhpms31/2	Premenstual Symptoms item 3: limited concentration (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=a little, 2=some, 3=most, 4=all of the time
zmhpms41/2	Premenstual Symptoms item 4: tense feelings (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=a little, 2=some, 3=most, 4=all of the time
zmhpms51/2	Premenstual Symptoms item 5: too tired for activities (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=a little, 2=some, 3=most, 4=all of the time
zmhpms61/2	Premenstual Symptoms item 6: prevent socialising (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=a little, 2=some, 3=most, 4=all of the time
zmhpmst1/2	PMS total score (TEDS26 twin MHQ), 0-24	derived	mhq	decimal	scale	0 to 24
zmhpreg1/2	CoTEDS item: expecting a child (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhpsqi11/2	PSQI item 1: sleep quality rating (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very good, 2=fairly good, 3=fairly bad, 4=very bad
zmhpsqi21/2	PSQI item 2: sleep difficulties interfered (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little bit, 2=moderately, 3=quite a bit, 4=extremely
zmhqol11/2	Quality of Life item 1: happy generally (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=extremely unhappy, 2=very unhappy, 3=moderately unhappy, 4=moderately happy, 5=very happy, 6=extremely happy
zmhqol21/2	Quality of Life item 2: happy with health (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=extremely unhappy, 2=very unhappy, 3=moderately unhappy, 4=moderately happy, 5=very happy, 6=extremely happy
zmhqol31/2	Quality of Life item 3: meaningful life (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=moderate amount, 3=very much, 4=extreme amount
zmhqoldurn1/2	Quality of Life block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 100 (seconds)
zmhqolm1/2	Quality of Life mean score (TEDS26 twin MHQ), 1-6	derived	mhq	decimal	scale	1 to 6
zmhqolpaus1/2	Quality of Life block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhqolstat1/2	Quality of Life block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhraads11/2	RAADS item 1: how to act in social situations (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never true, 1=true when under 17, 2=true now, 3=true now and when under 17
zmhraads21/2	RAADS item 2: isolate when overwhelmed (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never true, 1=true when under 17, 2=true now, 3=true now and when under 17
zmhraads31/2	RAADS item 3: hard to read faces (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never true, 1=true when under 17, 2=true now, 3=true now and when under 17
zmhraads41/2	RAADS item 4: focus on details (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never true, 1=true when under 17, 2=true now, 3=true now and when under 17
zmhraads51/2	RAADS item 5: take things too literally (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never true, 1=true when under 17, 2=true now, 3=true now and when under 17
zmhraads61/2	RAADS item 6: upset when routine changed (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never true, 1=true when under 17, 2=true now, 3=true now and when under 17
zmhraadsdurn1/2	RAADS block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 200 (seconds)
zmhraadsnont1/2	RAADS Non-Social total score (TEDS26 twin MHQ), 0-9	derived	mhq	decimal	scale	0 to 9
zmhraadspaus1/2	RAADS block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhraadssoct1/2	RAADS Socio-Communicative total score (TEDS26 twin MHQ), 0-9	derived	mhq	decimal	scale	0 to 9
zmhraadsstat1/2	RAADS block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhraadst1/2	RAADS overall total score (TEDS26 twin MHQ), 0-18	derived	mhq	decimal	scale	0 to 18
zmhrelst1/2	Demographics item: marital or relationship status (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=single, 2=partner not cohabiting, 3=partner cohabiting, 4=married, 5=separated/divorced/widowed, 6=other
zmhsaspd11/2	SASPD item 1: being with others (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=enjoy, 2=sometimes difficult, 3=generally do not like, 4=dislike and avoid
zmhsaspd21/2	SASPD item 2: trusting other people (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=no difficulty, 2=sometimes difficult, 3=few people I trust, 4=trust no one
zmhsaspd31/2	SASPD item 3: friendships (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=no difficulty, 2=difficult to make friends, 3=very few friends, 4=no friends
zmhsaspd41/2	SASPD item 4: temper (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=not easily, 2=more than others, 3=easily causing difficulties, 4=easily causing harm
zmhsaspd51/2	SASPD item 5: acting on impulse (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=never, 2=sometimes, 3=gets into trouble, 4=causing harm
zmhsaspd61/2	SASPD item 6: worrying (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=no, 2=sometimes worry, 3=generally worry, 4=constant worrying
zmhsaspd71/2	SASPD item 7: being organised (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=fine if not organised, 2=dislike disorganisation, 3=organising interferes, 4=organising stops me doing things
zmhsaspd81/2	SASPD item 8: caring about others (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=yes, 2=do not pay attention, 3=do not care, 4=callous
zmhsaspd91/2	SASPD item 9: self-reliance (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=generally complete things, 2=like to get help, 3=generally need help, 4=cannot do without help
zmhsaspddurn1/2	SASPD block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhsaspdm1/2	SASPD mean score (TEDS26 twin MHQ), 1-4	derived	mhq	decimal	scale	1 to 4
zmhsaspdpaus1/2	SASPD block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhsaspdstat1/2	SASPD block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhsdqbeht1/2	SDQ Behaviour problems overall total score (TEDS26 twin MHQ), 0-40	derived	mhq	decimal	scale	0 to 40
zmhsdqcon11/2	SDQ Conduct item 1: angry (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqcon21/2	SDQ Conduct item 2: do what others want (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqcon2r1/2	SDQ Conduct item 2: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=very true, 1=quite true, 2=not true
zmhsdqcon31/2	SDQ Conduct item 3: fought a lot (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqcon41/2	SDQ Conduct item 4: lying or cheating (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqcon51/2	SDQ Conduct item 5: stole things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqcont1/2	SDQ Conduct total score (TEDS26 twin MHQ), 0-10	derived	mhq	decimal	scale	0 to 10
zmhsdqdurn1/2	SDQ block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhsdqemo11/2	SDQ Emotion item 1: headaches (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqemo21/2	SDQ Emotion item 2: worried (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqemo31/2	SDQ Emotion item 3: unhappy (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqemo41/2	SDQ Emotion item 4: nervous in new situations (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqemo51/2	SDQ Emotion item 5: many fears (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqemot1/2	SDQ Emotion total score (TEDS26 twin MHQ), 0-10	derived	mhq	decimal	scale	0 to 10
zmhsdqhyp11/2	SDQ Hyperactivity item 1: restless (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqhyp21/2	SDQ Hyperactivity item 2: fidgeting (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqhyp31/2	SDQ Hyperactivity item 3: easily distracted (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqhyp41/2	SDQ Hyperactivity item 4: thought before acting (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqhyp4r1/2	SDQ Hyperactivity item 4: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=very true, 1=quite true, 2=not true
zmhsdqhyp51/2	SDQ Hyperactivity item 5: good attention (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqhyp5r1/2	SDQ Hyperactivity item 5: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=very true, 1=quite true, 2=not true
zmhsdqhypt1/2	SDQ Hyperactivity total score (TEDS26 twin MHQ), 0-10	derived	mhq	decimal	scale	0 to 10
zmhsdqpaus1/2	SDQ block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhsdqper11/2	SDQ Peer Problems item 1: rather be alone (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqper21/2	SDQ Peer Problems item 2: at least one good friend (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqper2r1/2	SDQ Peer Problems item 2: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=very true, 1=quite true, 2=not true
zmhsdqper31/2	SDQ Peer Problems item 3: liked by peers (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqper3r1/2	SDQ Peer Problems item 3: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=very true, 1=quite true, 2=not true
zmhsdqper41/2	SDQ Peer Problems item 4: picked on (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqper51/2	SDQ Peer Problems item 5: got on better with older people (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqpert1/2	SDQ Peer Problems total score (TEDS26 twin MHQ), 0-10	derived	mhq	decimal	scale	0 to 10
zmhsdqpro11/2	SDQ Prosocial item 1: nice to others (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqpro21/2	SDQ Prosocial item 2: shared with others (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqpro31/2	SDQ Prosocial item 3: helpful if someone hurt (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqpro41/2	SDQ Prosocial item 4: kind to children (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqpro51/2	SDQ Prosocial item 5: volunteered to help (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not true, 1=quite true, 2=very true
zmhsdqprot1/2	SDQ Prosocial total score (TEDS26 twin MHQ), 0-10	derived	mhq	decimal	scale	0 to 10
zmhsdqqcer1/2	SDQ QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsdqstat1/2	SDQ block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhsdqtime1/2	SDQ time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 200 (seconds)
zmhses1/2	Demogrphics: twin SES composite (TEDS26 twin MHQ), standardised	derived	mhq	decimal	scale	approx -3 to +3 (standardised)
zmhsexor1/2	Demographics item: sexual orientation (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=heterosexual, 2=homosexual, 3=bisexual, 4=pansexual, 5=asexual, 6=fluid, 7=self-define
zmhslfhm011/2	Self Harm item 1: thoughts of suicide (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm021/2	Self Harm item 2: harmed yourself (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm031/2	Self Harm item 3: harmed self without suicide intention (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm041/2	Self Harm item 4: wanted to kill self (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm051/2	Self Harm item 5: show desperation (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm061/2	Self Harm item 6: wanted to die (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm071/2	Self Harm item 7: to punish self (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm081/2	Self Harm item 8: to frighten someone (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm091/2	Self Harm item 9: to get relief (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm101/2	Self Harm item 10: swallowed pills (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm111/2	Self Harm item 11: harmed skin (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm121/2	Self Harm item 12: burnt or scalded (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm131/2	Self Harm item 13: scratched/bruised/hit (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=no, 1=once or twice, 2=3-5 times, 3=6-10 times, 4=11-20 times, 5=more than 20 times
zmhslfhm14a1/2	Self Harm item 14a: sought help from GP (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhslfhm14b1/2	Self Harm item 14b: sought help at casualty (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhslfhm14c1/2	Self Harm item 14c: sought help from other professional (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhslfhmdurn1/2	Self Harm block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 200 (seconds)
zmhslfhmpaus1/2	Self Harm block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhslfhmstat1/2	Self Harm block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhsmo11/2	Smoking item 1: ever smoked (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmocig11/2	Smoking Cigarettes item 1: currently smoke cigarettes (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmocig21/2	Smoking Cigarettes item 2: how many ever smoked (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=1-10, 2=11-50, 3=51-100, 4=101-250, 5=251-500, 6=501-1000, 7=over 1000
zmhsmocig31/2	Smoking Cigarettes item 3: age in years when first smoked (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	12=12 or less, 13-23, 24=24 or more
zmhsmocig41/2	Smoking Cigarettes item 4: how often smoke (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than once a month, 2=at least monthly, 3=at least weekly, 4=at least daily, 5=every few hours
zmhsmocig51/2	Smoking Cigarettes item 5: how many cigarettes per day (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=10 or less, 2=11-20, 3=21 or more
zmhsmocig61/2	Smoking Cigarettes item 6: strong urge to smoke (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=less than weekly, 2=at least weekly, 3=most days, 4=several times a day
zmhsmodurn1/2	Smoking block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 100 (seconds)
zmhsmopaus1/2	Smoking block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhsmostat1/2	Smoking block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed
zmhsmovap11/2	Smoking Vapes item 1: currently smoke vapes (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmovap21/2	Smoking Vapes item 2: age in years when first vaped (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	16=16 or less, 17-26, 27=27 or more
zmhsmovap31/2	Smoking Vapes item 3: how long vaped for (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 1 month, 2=1-3 months, 3=3-6 months, 4=6-12 months, 5=1-2 years, 6=over 2 years
zmhsmovap41/2	Smoking Vapes item 4: how often use vapes (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=once or a few times, 2=less than monthly, 3=at least monthly, 4=at least weekly, 5=at least daily, 6=every few hours
zmhsmovap5a1/2	Smoking Vapes item 5a: type: disposable (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmovap5b1/2	Smoking Vapes item 5b: type: replaceable pods (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmovap5c1/2	Smoking Vapes item 5c: type: liquid fill (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmovap61/2	Smoking Vapes item 6: vape nicotine (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsmovap71/2	Smoking Vapes item 7: percentage nicotine in vapes (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=1% or lower, 2=1.1-2%, 3=2.1% or higher
zmhsmovap81/2	Smoking Vapes item 8: is vaping more harmful than cigarettes (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=a lot more, 2=a little more, 3=equally, 4=a little less, 5=a lot less harmful
zmhsocph01a1/2	AGoD Social Phobia item 1a: strong fear of social situations (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph01b1/2	AGoD Social Phobia item 1b: strong fear of being observed (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph021/2	AGoD Social Phobia item 2: worried about what others think (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph031/2	AGoD Social Phobia item 3: how often did situations cause fear (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=once or twice, 2=some of the time, 3=almost always, 4=always
zmhsocph04a1/2	AGoD Social Phobia item 4a: avoided situations (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph04b1/2	AGoD Social Phobia item 4b: endured with intense anxiety (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph051/2	AGoD Social Phobia item 5: was fear out of proportion (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph061/2	AGoD Social Phobia item 6: longest period of fears (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 6 months, 2=6-12 months
zmhsocph07a1/2	AGoD Social Phobia item 7a: number of times had periods of fear (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1, 2, 3, 4, 5, 6, 7=7-9, 8=10-12, 9=13+ weeks, 10=all my life
zmhsocph07b1/2	AGoD Social Phobia item 7b: age in years when fears started (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	5, 6 up to 25, 26=26+ (years)
zmhsocph07c1/2	AGoD Social Phobia item 7c: age in years when most recently experienced (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	17=17 or less, 18, 19 up to 27, 28=28+ (years)
zmhsocph081/2	AGoD Social Phobia item 8: how much did fears interfere (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=some, 3=a lot
zmhsocph09a1/2	AGoD Social Phobia item 9a: treatment: prescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph09b1/2	AGoD Social Phobia item 9b: treatment: specific anxiety medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph09c1/2	AGoD Social Phobia item 9c: treatment: unprescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph09d1/2	AGoD Social Phobia item 9d: treatment: drugs or alcohol (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph09e1/2	AGoD Social Phobia item 9e: treatment: psychotherapy/talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph09f1/2	AGoD Social Phobia item 9f: treatment: structured wellbeing activity (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph09g1/2	AGoD Social Phobia item 9g: treatment: regular exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph101/2	AGoD Social Phobia item 10: NHS funded talking therapy (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=yes currently, 2=yes currently and previously, 3=yes previously, 4=no
zmhsocph11a1/2	AGoD Social Phobia item 11a: took medication as advised (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph11b1/2	AGoD Social Phobia item 11b: was medication helpful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12a1/2	AGoD Social Phobia item 12a: therapy: counselling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12b1/2	AGoD Social Phobia item 12b: therapy: psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12c1/2	AGoD Social Phobia item 12c: therapy: mindfulness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12e1/2	AGoD Social Phobia item 12e: therapy: group therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12f1/2	AGoD Social Phobia item 12f: therapy: EMDR (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12g1/2	AGoD Social Phobia item 12g: therapy: guided self-help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12h1/2	AGoD Social Phobia item 12h: therapy: family therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12i1/2	AGoD Social Phobia item 12i: therapy: CBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12j1/2	AGoD Social Phobia item 12j: therapy: DBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12k1/2	AGoD Social Phobia item 12k: therapy: workshops (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12m1/2	AGoD Social Phobia item 12m: therapy: online therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12n1/2	AGoD Social Phobia item 12n: therapy: hypnotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12o1/2	AGoD Social Phobia item 12o: therapy: other talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph12p1/2	AGoD Social Phobia item 12p: therapy: other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph13a1/2	AGoD Social Phobia item 13a: completed course of psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocph13b1/2	AGoD Social Phobia item 13b: was psychotherapy useful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocphdiag1/2	Social Phobia: diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhsocphdurn1/2	AGoD Social Phobias block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhsocphpaus1/2	AGoD Social Phobias block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhsocphstat1/2	AGoD Social Phobias block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhspeph01a1/2	AGoD Specific Phobias item 1a: strong fear of environment (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph01b1/2	AGoD Specific Phobias item 1b: strong fear of situations (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph01c1/2	AGoD Specific Phobias item 1c: strong fear of animals (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph01d1/2	AGoD Specific Phobias item 1d: strong fear of blood/injury (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph01e1/2	AGoD Specific Phobias item 1e: strong fear of other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph02a1/2	AGoD Specific Phobias item 2a: avoided situations (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph02b1/2	AGoD Specific Phobias item 2b: endured with intense anxiety (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph031/2	AGoD Specific Phobias item 3: how often did situations cause fear (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=never, 1=once or twice, 2=some of the time, 3=almost always, 4=always
zmhspeph04a1/2	AGoD Specific Phobias item 4a: age in years when fears started (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	5, 6 up to 24, 25=25+ (years)
zmhspeph04b1/2	AGoD Specific Phobias item 4b: age in years when most recently experienced (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	17=17 or less, 18, 19 up to 27, 28=28+ (years)
zmhspeph051/2	AGoD Specific Phobias item 5: longest period of fears (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=less than 6 months, 2=6-12 months, 3=1-5 years, 4=5+ years, 5=all my life
zmhspeph061/2	AGoD Specific Phobias item 6: how much have fears interfered (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=a little, 2=some, 3=a lot
zmhspeph071/2	AGoD Specific Phobias item 7: were fears out of proportion (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08a1/2	AGoD Specific Phobias item 8a: treatment: prescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08b1/2	AGoD Specific Phobias item 8b: treatment: specific anxiety medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08c1/2	AGoD Specific Phobias item 8c: treatment: unprescribed medication (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08d1/2	AGoD Specific Phobias item 8d: treatment: drugs or alcohol (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08e1/2	AGoD Specific Phobias item 8e: treatment: psychotherapy/talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08f1/2	AGoD Specific Phobias item 8f: treatment: structured wellbeing activity (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph08g1/2	AGoD Specific Phobias item 8g: treatment: regular exercise (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph091/2	AGoD Specific Phobias item 9: NHS funded talking therapy (TEDS26 twin MHQ), see value labels	item	mhq	integer	nominal	1=yes currently, 2=yes currently and previously, 3=yes previously, 4=no
zmhspeph10a1/2	AGoD Specific Phobias item 10a: took medication as advised (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph10b1/2	AGoD Specific Phobias item 10b: was medication helpful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11a1/2	AGoD Specific Phobias item 11a: therapy: counselling (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11b1/2	AGoD Specific Phobias item 11b: therapy: psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11c1/2	AGoD Specific Phobias item 11c: therapy: mindfulness (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11e1/2	AGoD Specific Phobias item 11e: therapy: group therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11f1/2	AGoD Specific Phobias item 11f: therapy: EMDR (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11g1/2	AGoD Specific Phobias item 11g: therapy: guided self-help (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11i1/2	AGoD Specific Phobias item 11i: therapy: CBT (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11m1/2	AGoD Specific Phobias item 11m: therapy: online therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11o1/2	AGoD Specific Phobias item 11o: therapy: other talking therapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph11p1/2	AGoD Specific Phobias item 11p: therapy: other (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph12a1/2	AGoD Specific Phobias item 12a: completed course of psychotherapy (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeph12b1/2	AGoD Specific Phobias item 12b: was psychotherapy useful (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspephdiag1/2	Specific Phobia: diagnosis derived from items (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspephdurn1/2	AGoD Specific Phobias block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhspephpaus1/2	AGoD Specific Phobias block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhspephstat1/2	AGoD Specific Phobias block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhspeqdurn1/2	SPEQ Paranoia and Hallucinations block duration if less than 600s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 600 (seconds)
zmhspeqhal11/2	SPEQ Hallucinations item 1: hear sounds others do not (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal21/2	SPEQ Hallucinations item 2: see things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal31/2	SPEQ Hallucinations item 3: feel someone touching me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal41/2	SPEQ Hallucinations item 4: hear unexplained sounds (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal51/2	SPEQ Hallucinations item 5: detect unexplained smells (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal61/2	SPEQ Hallucinations item 6: see shapes and colours (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal71/2	SPEQ Hallucinations item 7: smell things others do not (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal81/2	SPEQ Hallucinations item 8: unexplained burning sensations (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhal91/2	SPEQ Hallucinations item 9: hear voices commenting (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqhalt1/2	SPEQ Hallucinations total score (TEDS26 twin MHQ), 0-45	derived	mhq	decimal	scale	0 to 45
zmhspeqhed011/2	SPEQ Hedonia item 1: look forward to exciting things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed021/2	SPEQ Hedonia item 2: anticipate tasting food (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed031/2	SPEQ Hedonia item 3: do not look forward to events (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed03r1/2	SPEQ Hedonia item 3: reversed version (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	6=very true, 5=moderately true, 4=slightly true, 3=slightly false, 2=moderately false, 1=very false
zmhspeqhed041/2	SPEQ Hedonia item 4: can hardly wait for days out (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed051/2	SPEQ Hedonia item 5: hardly sleep before holidays (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed061/2	SPEQ Hedonia item 6: have to have tasty things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed071/2	SPEQ Hedonia item 7: looking forward is pleasurable (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed081/2	SPEQ Hedonia item 8: look forward to a lot of things (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed091/2	SPEQ Hedonia item 9: imagine tasting things on menu (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqhed101/2	SPEQ Hedonia item 10: cannot wait to see films (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	1=very false, 2=moderately false, 3=slightly false, 4=slightly true, 5=moderately true, 6=very true
zmhspeqheddurn1/2	SPEQ Hedonia block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhspeqhedm1/2	SPEQ Hedonia mean score (TEDS26 twin MHQ), 1-6	derived	mhq	decimal	scale	1 to 6
zmhspeqhedpaus1/2	SPEQ Hedonia block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhspeqhedqcer1/2	SPEQ Hedonia QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeqhedstat1/2	SPEQ Hedonia block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhspeqhedtime1/2	SPEQ Hedonia time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 100 (seconds)
zmhspeqpar011/2	SPEQ Paranoia item 1: someone has bad intentions (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar021/2	SPEQ Paranoia item 2: bad things said about me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar031/2	SPEQ Paranoia item 3: hostile towards me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar041/2	SPEQ Paranoia item 4: trying to upset me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar051/2	SPEQ Paranoia item 5: has it in for me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar061/2	SPEQ Paranoia item 6: looking in unfriendly way (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar071/2	SPEQ Paranoia item 7: negative comments (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar081/2	SPEQ Paranoia item 8: conspiring against me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar091/2	SPEQ Paranoia item 9: under threat (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar101/2	SPEQ Paranoia item 10: laughing at me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar111/2	SPEQ Paranoia item 11: people would harm me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar121/2	SPEQ Paranoia item 12: trying to irritate me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar131/2	SPEQ Paranoia item 13: on my guard (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar141/2	SPEQ Paranoia item 14: being observed (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpar151/2	SPEQ Paranoia item 15: coded messages about me (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
zmhspeqpart1/2	SPEQ Paranoia total score (TEDS26 twin MHQ), 0-75	derived	mhq	decimal	scale	0 to 75
zmhspeqpaus1/2	SPEQ Paranoia and Hallucinations block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhspeqqcer1/2	SPEQ Paranoia and Hallucinations QC item response error (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhspeqstat1/2	SPEQ Paranoia and Hallucinations block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data), 4=careless responder (excluded)
zmhspeqtime1/2	SPEQ Paranoia and Hallucinations time spent answering (TEDS26 twin MHQ), seconds	derived	mhq	decimal	quantitative	approx 0 to 200 (seconds)
zmhstatus1/2	TEDS26 twin MHQ overall status, see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 4=careless responder (excluded)
zmhtransg1/2	Demographics item: identify as transgender (TEDS26 twin MHQ), 1Y 0N	item	mhq	integer	nominal	0=no, 1=yes
zmhuniexpa1/2	Demographics item: university fees met by self (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=some, 2=roughly half, 3=more than half, 4=all
zmhuniexpb1/2	Demographics item: university fees met by parents (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=some, 2=roughly half, 3=more than half, 4=all
zmhuniexpc1/2	Demographics item: university fees met by grants (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=some, 2=roughly half, 3=more than half, 4=all
zmhuniexpd1/2	Demographics item: university fees met by loans (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=some, 2=roughly half, 3=more than half, 4=all
zmhuniexpe1/2	Demographics item: university fees met by other (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=none, 1=some, 2=roughly half, 3=more than half, 4=all
zmhwasas11/2	WASAS item 1: work impaired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1, 2=slightly, 3, 4=definitely, 5, 6=markedly, 7, 8=very severely
zmhwasas21/2	WASAS item 2: study impaired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1, 2=slightly, 3, 4=definitely, 5, 6=markedly, 7, 8=very severely
zmhwasas31/2	WASAS item 3: home management impaired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1, 2=slightly, 3, 4=definitely, 5, 6=markedly, 7, 8=very severely
zmhwasas41/2	WASAS item 4: social leisure impaired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1, 2=slightly, 3, 4=definitely, 5, 6=markedly, 7, 8=very severely
zmhwasas51/2	WASAS item 5: private leisure impaired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1, 2=slightly, 3, 4=definitely, 5, 6=markedly, 7, 8=very severely
zmhwasas61/2	WASAS item 6: relationships impaired (TEDS26 twin MHQ), see value labels	item	mhq	integer	ordinal	0=not at all, 1, 2=slightly, 3, 4=definitely, 5, 6=markedly, 7, 8=very severely
zmhwasasdurn1/2	WASAS block duration if less than 300s (TEDS26 twin MHQ), seconds	derived	mhq	integer	quantitative	approx 0 to 300 (seconds)
zmhwasaspaus1/2	WASAS block paused or took long time (TEDS26 twin MHQ), 1Y 0N	derived	mhq	integer	nominal	0=no, 1=yes
zmhwasasstat1/2	WASAS block status (TEDS26 twin MHQ), see value labels	derived	mhq	integer	nominal	0=not started, 1=started but not finished, 2=completed, 3=skipped (no data)
zmhwasast1/2	WASAS total score (TEDS26 twin MHQ), 0-48	derived	mhq	decimal	scale	0 to 48
zmhweight1/2	Medical History item: weight (TEDS26 twin MHQ), kilograms	item	mhq	integer	quantitative	approx 40 to 140 (kg)