UKB : Data-Field 699

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Data

573,802 items of data are available, covering 501,642 participants.
Some values have special meanings defined by Data-Coding 100290.
Defined-instances run from 0 to 3, labelled using Instancing 2.
Units of measurement are years.

Maximum	80
Decile 9	35
Decile 8	30
Decile 7	25
Decile 6	21
Median	17
Decile 4	13
Decile 3	10
Decile 2	6
Decile 1	4
Minimum	1

There are 80 distinct values.
Mean = 18.3648
Std.dev = 12.1487
418 items above graph maximum of 66
12687 items have value -10 (Less than a year)
1250 items have value -3 (Prefer not to answer)
645 items have value -1 (Do not know)

Counts of participants/items last updated 30 Oct 2020.

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,625 participants, 501,625 items

Maximum	70
Decile 9	35
Decile 8	28
Decile 7	24
Decile 6	20
Median	16
Decile 4	12
Decile 3	9
Decile 2	6
Decile 1	3
Minimum	1

There are 70 distinct values.
Mean = 17.8068
Std.dev = 11.9152
196 items above graph maximum of 67
11071 items have value -10 (Less than a year)
1201 items have value -3 (Prefer not to answer)
605 items have value -1 (Do not know)

Instance 1 : First repeat assessment visit (2012-13)
20,335 participants, 20,335 items

Maximum	79
Decile 9	39
Decile 8	33
Decile 7	29
Decile 6	26
Median	22
Decile 4	18
Decile 3	14
Decile 2	10
Decile 1	6
Minimum	1

There are 76 distinct values.
Mean = 22.3564
Std.dev = 12.4538
6 items above graph maximum of 72
286 items have value -10 (Less than a year)
10 items have value -3 (Prefer not to answer)
14 items have value -1 (Do not know)

Instance 2 : Imaging visit (2014+)
48,642 participants, 48,642 items

Maximum	80
Decile 9	40
Decile 8	34
Decile 7	30
Decile 6	26
Median	21
Decile 4	18
Decile 3	14
Decile 2	9
Decile 1	4
Minimum	1

There are 80 distinct values.
Mean = 22.1639
Std.dev = 13.2284
10 items above graph maximum of 76
1264 items have value -10 (Less than a year)
37 items have value -3 (Prefer not to answer)
24 items have value -1 (Do not know)

Instance 3 : First repeat imaging visit (2019+)
3,200 participants, 3,200 items

Maximum	74
Decile 9	40
Decile 8	35
Decile 7	30
Decile 6	26
Median	22
Decile 4	19
Decile 3	14
Decile 2	9
Decile 1	4
Minimum	1

There are 64 distinct values.
Mean = 22.5393
Std.dev = 13.2907
66 items have value -10 (Less than a year)
2 items have value -3 (Prefer not to answer)
2 items have value -1 (Do not know)

Notes

ACE touchscreen question "How many years have you lived at your current address?"

The following checks were performed:

If answer < 1 then rejected
If answer > Participants age then rejected

If the participant activated the Help button they were shown the message:

If you have lived there for less than one year select Less than a year.
If you are unsure, please provide an estimate or select Do not know.
If you have lived at your current address at different times, add up
the total number of years you lived there. For instance if you lived
at your current address for 3 years, moved overseas for one year and
returned to your current address for another 5 years, then you would
enter 8 years.

Coding 100290 defines 3 special values:

-10 represents "Less than a year"
-1 represents "Do not know"
-3 represents "Prefer not to answer"

5 Categories

Category ID	Description	Items
100066	Household	11
701	Socio-demographics	110
100062	Sociodemographics	+29
100025	Touchscreen	+403
100000	UK Biobank Assessment Centre	+2145

0 Related Data-Fields

There are no related data-fields

0 Tabulations

There are no tabulations involving field 699.

Registered researchers may, when logged in, request that new analyses be generated and displayed here.

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 699	100468
	Touchscreen questionnaire ordering, validation and dependencies	113241

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