Data
295,512 items of data are available, covering 267,997 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 327 distinct values.
- Mean = 13.9945
- Std.dev = 84.5417
- 9713 items above graph maximum of 48
- 11903 items have value -10 (Less than one mile)
- 2353 items have value -3 (Prefer not to answer)
- 15227 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
265,529 participants, 265,529 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 = 86.7037
- 9593 items above graph maximum of 44
- 10856 items have value -10 (Less than one mile)
- 2064 items have value -3 (Prefer not to answer)
- 13931 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
7,475 participants, 7,475 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 = 14.1503
- Std.dev = 29.3619
- 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+)
20,673 participants, 20,673 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 179 distinct values.
- Mean = 16.0035
- Std.dev = 72.3529
- 681 items above graph maximum of 58
- 726 items have value -10 (Less than one mile)
- 193 items have value -3 (Prefer not to answer)
- 911 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
1,835 participants, 1,835 items
| Maximum | 1000 |
| Decile 9 | 30 |
| Decile 8 | 18 |
| Decile 7 | 12 |
| Decile 6 | 10 |
| Median | 7 |
| Decile 4 | 6 |
| Decile 3 | 5 |
| Decile 2 | 3 |
| Decile 1 | 2 |
| Minimum | 0 |
|
|
- There are 79 distinct values.
- Mean = 15.6124
- Std.dev = 38.4977
- 56 items above graph maximum of 58
- 50 items have value -10 (Less than one mile)
- 15 items have value -3 (Prefer not to answer)
- 67 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 |
