: Data-Field 757

Data-Field 757

Description:	Time employed in main current job
Category:	Assessment centre ⏵ Touchscreen ⏵ Sociodemographics ⏵ Employment
	Education and employment + Socio-demographics

Participants

288,972

Integer, years

Both sexes

Jan 2012

333,862

Data

Defined (4)

Aug 2025

Complete

Primary

o1 s1

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Data

333,862 items of data are available, covering 288,972 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	66
Decile 9	30
Decile 8	24
Decile 7	19
Decile 6	15
Median	11
Decile 4	8
Decile 3	6
Decile 2	4
Decile 1	2
Minimum	1

There are 65 distinct values.
Mean = 14.0102
Std.dev = 10.85
42 items above graph maximum of 58
16898 items have value -10 (Less than a year)
909 items have value -3 (Prefer not to answer)
383 items have value -1 (Do not know)

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
286,765 participants, 286,765 items

Maximum	58
Decile 9	30
Decile 8	23
Decile 7	19
Decile 6	14
Median	10
Decile 4	8
Decile 3	6
Decile 2	4
Decile 1	2
Minimum	1

There are 56 distinct values.
Mean = 13.6221
Std.dev = 10.5703
14778 items have value -10 (Less than a year)
802 items have value -3 (Prefer not to answer)
315 items have value -1 (Do not know)

Instance 1 : First repeat assessment visit (2012-13)
8,292 participants, 8,292 items

Maximum	60
Decile 9	32
Decile 8	25
Decile 7	20
Decile 6	15
Median	12
Decile 4	10
Decile 3	7
Decile 2	5
Decile 1	3
Minimum	1

There are 58 distinct values.
Mean = 14.9647
Std.dev = 11.1509
371 items have value -10 (Less than a year)
17 items have value -3 (Prefer not to answer)
6 items have value -1 (Do not know)

Instance 2 : Imaging visit (2014+)
33,398 participants, 33,398 items

Maximum	64
Decile 9	35
Decile 8	28
Decile 7	22
Decile 6	18
Median	14
Decile 4	10
Decile 3	8
Decile 2	5
Decile 1	3
Minimum	1

There are 64 distinct values.
Mean = 16.5293
Std.dev = 12.2614
1 item above graph maximum of 64
1555 items have value -10 (Less than a year)
80 items have value -3 (Prefer not to answer)
55 items have value -1 (Do not know)

Instance 3 : First repeat imaging visit (2019+)
5,407 participants, 5,407 items

Maximum	66
Decile 9	36
Decile 8	30
Decile 7	24
Decile 6	20
Median	15
Decile 4	11
Decile 3	8
Decile 2	5
Decile 1	3
Minimum	1

There are 62 distinct values.
Mean = 17.4171
Std.dev = 12.7015
194 items have value -10 (Less than a year)
10 items have value -3 (Prefer not to answer)
7 items have value -1 (Do not know)

Notes

ACE touchscreen question "How many years have you worked in your current job? (If you have more than one job please answer this, and the following questions on work, for your MAIN job only)"

The following checks were performed:

If answer < 1 then rejected
If answer > Participants age - 10 years then rejected
If answer > Participants age - 16 years then participant asked to confirm

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

If you have more than one 'current job' then answer this question for your
MAIN job only (ie: the job that you spend most of your time doing).
If you have been with the same employer, but have changed jobs whilst you
have worked for them, then only give the number of years that you have been
in your current job (not the number of years that you have been employed by
the same company). For instance, if you have worked as mail-room sorter but
then been promoted to manager of the mail-room, please give the number of years
you have worked as the mail-room manager only.
If you have changed employers, but have had the same job, please give the total
number of years that you have worked in that job. For instance, if you have
worked as a cleaner for 3 different companies, please give the total number of
years working as a cleaner.

Field 757 was collected from all the participants who indicated they were in paid employment or self-employed, as defined by their answers to Field 6142

Coding 100290 defines 3 special values:

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

1 Related Data-Field

Field ID	Description	Relationship
6142	Current employment status	Current Field was collected from all the participants who indicated they were in paid employment or self-employed, as defined by their answers to Field 6142

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 757	100257
	Touchscreen questionnaire ordering, validation and dependencies	113241

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