: Data-Field 699

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Data

587,945 items of data are available, covering 501,540 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	85
Decile 9	35
Decile 8	30
Decile 7	25
Decile 6	21
Median	17
Decile 4	13
Decile 3	10
Decile 2	7
Decile 1	4
Minimum	1

There are 81 distinct values.
Mean = 18.472
Std.dev = 12.2127
444 items above graph maximum of 66
13071 items have value -10 (Less than a year)
1261 items have value -3 (Prefer not to answer)
654 items have value -1 (Do not know)

Counts of participants/items last updated 19 Jul 2022.

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,520 participants, 501,520 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 = 17.8081
Std.dev = 11.9155
196 items above graph maximum of 67
11067 items have value -10 (Less than a year)
1200 items have value -3 (Prefer not to answer)
604 items have value -1 (Do not know)

Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 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 = 22.3571
Std.dev = 12.4537
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+)
60,817 participants, 60,817 items

Maximum	85
Decile 9	40
Decile 8	35
Decile 7	30
Decile 6	26
Median	22
Decile 4	18
Decile 3	14
Decile 2	9
Decile 1	4
Minimum	1

There are 81 distinct values.
Mean = 22.315
Std.dev = 13.4034
16 items above graph maximum of 76
1589 items have value -10 (Less than a year)
48 items have value -3 (Prefer not to answer)
33 items have value -1 (Do not know)

Instance 3 : First repeat imaging visit (2019+)
5,274 participants, 5,274 items

Maximum	74
Decile 9	40
Decile 8	34
Decile 7	30
Decile 6	25
Median	21
Decile 4	18
Decile 3	15
Decile 2	9
Decile 1	4
Minimum	1

There are 69 distinct values.
Mean = 22.2263
Std.dev = 13.1201
129 items have value -10 (Less than a year)
3 items have value -3 (Prefer not to answer)
3 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
100000	Assessment centre	+3688
100066	Household	11
701	Socio-demographics	110
100062	Sociodemographics	+29
100025	Touchscreen	+396

0 Related Data-Fields

There are no related data-fields

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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