Data
301,891 items of data are available, covering 268,445 participants.
Some values have special meanings defined by Data-Coding
100300.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are miles.
| Maximum | 9000 |
| Decile 9 | 25 |
| Decile 8 | 15 |
| Decile 7 | 10 |
| Decile 6 | 8 |
| Median | 6 |
| Decile 4 | 5 |
| Decile 3 | 4 |
| Decile 2 | 3 |
| Decile 1 | 2 |
| Minimum | 0 |
|
|
- There are 329 distinct values.
- Mean = 14.0178
- Std.dev = 83.8528
- 10016 items above graph maximum of 48
- 12161 items have value -10 (Less than one mile)
- 2414 items have value -3 (Prefer not to answer)
- 15575 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
265,388 participants, 265,388 items
| Maximum | 9000 |
| Decile 9 | 23 |
| Decile 8 | 15 |
| Decile 7 | 10 |
| Decile 6 | 8 |
| Median | 6 |
| Decile 4 | 5 |
| Decile 3 | 4 |
| Decile 2 | 3 |
| Decile 1 | 2 |
| Minimum | 0 |
|
|
- There are 308 distinct values.
- Mean = 13.8199
- Std.dev = 86.7254
- 9586 items above graph maximum of 44
- 10853 items have value -10 (Less than one mile)
- 2061 items have value -3 (Prefer not to answer)
- 13924 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
7,473 participants, 7,473 items
| Maximum | 800 |
| Decile 9 | 28 |
| Decile 8 | 16 |
| Decile 7 | 12 |
| Decile 6 | 9 |
| Median | 7 |
| Decile 4 | 5 |
| Decile 3 | 4 |
| Decile 2 | 3 |
| Decile 1 | 2 |
| Minimum | 0 |
|
|
- There are 118 distinct values.
- Mean = 14.1502
- Std.dev = 29.3654
- 222 items above graph maximum of 54
- 271 items have value -10 (Less than one mile)
- 81 items have value -3 (Prefer not to answer)
- 318 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
25,865 participants, 25,865 items
| Maximum | 6830 |
| Decile 9 | 30 |
| Decile 8 | 17 |
| Decile 7 | 12 |
| Decile 6 | 10 |
| Median | 7 |
| Decile 4 | 5 |
| Decile 3 | 4 |
| Decile 2 | 3 |
| Decile 1 | 2 |
| Minimum | 0 |
|
|
- There are 189 distinct values.
- Mean = 15.8789
- Std.dev = 67.429
- 877 items above graph maximum of 58
- 932 items have value -10 (Less than one mile)
- 248 items have value -3 (Prefer not to answer)
- 1208 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
3,165 participants, 3,165 items
| Maximum | 1000 |
| Decile 9 | 26 |
| Decile 8 | 17 |
| Decile 7 | 12 |
| Decile 6 | 10 |
| Median | 7 |
| Decile 4 | 6 |
| Decile 3 | 4 |
| Decile 2 | 3 |
| Decile 1 | 2 |
| Minimum | 0 |
|
|
- There are 95 distinct values.
- Mean = 14.9131
- Std.dev = 36.0503
- 99 items above graph maximum of 50
- 105 items have value -10 (Less than one mile)
- 24 items have value -3 (Prefer not to answer)
- 125 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "About how many miles is it between your home and your work? "
The following checks were performed:
- If answer < 0 then rejected
- If answer > 9999 then rejected
- If answer > 70 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.
If you are unsure, please provide an estimate or select Do not know.
If you only work from home please enter 0
|
Field 796 was collected from participants who indicated they were in paid employment or self-employed, as defined by their answers to Field 6142 and except those who indicated they always work from home, as defined by their answers to Field 6142
Coding 100300 defines 3 special values:
- -10 represents "Less than one mile"
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
2 Related Data-Fields
| Field ID | Description | Relationship |
|---|
| 6142 | Current employment status | Field 6142 affects who was asked to answer Current Field |
| 777 | Frequency of travelling from home to ... | Field 777 affects who was asked to answer Current Field |
