Data
591,861 items of data are available, covering 501,295 participants.
Some values have special meanings defined by Data-Coding
100329.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are hours/day.
| Maximum | 24 |
| Decile 9 | 2 |
| Decile 8 | 2 |
| Decile 7 | 1 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 1 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 22 distinct values.
- Mean = 1.18135
- Std.dev = 1.3872
- 11324 items above graph maximum of 4
- 190288 items have value -10 (Less than an hour a day)
- 2627 items have value -3 (Prefer not to answer)
- 7023 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,243 participants, 501,243 items
| Maximum | 24 |
| Decile 9 | 2 |
| Decile 8 | 2 |
| Decile 7 | 1 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 1 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 22 distinct values.
- Mean = 1.19479
- Std.dev = 1.42367
- 10442 items above graph maximum of 4
- 153643 items have value -10 (Less than an hour a day)
- 2470 items have value -3 (Prefer not to answer)
- 6335 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 items
| Maximum | 11 |
| Decile 9 | 2 |
| Decile 8 | 2 |
| Decile 7 | 1 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 12 distinct values.
- Mean = 1.14253
- Std.dev = 1.12323
- 206 items above graph maximum of 4
- 8223 items have value -10 (Less than an hour a day)
- 36 items have value -3 (Prefer not to answer)
- 155 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
64,924 participants, 64,924 items
| Maximum | 20 |
| Decile 9 | 2 |
| Decile 8 | 2 |
| Decile 7 | 1 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 18 distinct values.
- Mean = 1.08203
- Std.dev = 1.12712
- 624 items above graph maximum of 4
- 26169 items have value -10 (Less than an hour a day)
- 116 items have value -3 (Prefer not to answer)
- 505 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 5,360 items
| Maximum | 12 |
| Decile 9 | 2 |
| Decile 8 | 2 |
| Decile 7 | 1 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 12 distinct values.
- Mean = 1.08295
- Std.dev = 1.07371
- 52 items above graph maximum of 4
- 2253 items have value -10 (Less than an hour a day)
- 5 items have value -3 (Prefer not to answer)
- 28 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "In a typical DAY, how many hours do you spend driving?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 24 then rejected
- If answer > 6 then participant asked to confirm
If the participant activated the Help button they were shown the message:
If the time you spend driving varies a lot, give the average time
for a 24 hour day in the last 4 weeks.
Include driving a car, bus, motorcycle, boat, truck etc.
Include all the driving that you do as part of work, getting to work
or outside of work.
If you do not drive please enter 0.
|
Coding 100329 defines 3 special values:
- -10 represents "Less than an hour a day"
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
0 Related Data-Fields
There are no related data-fields
