Data
615,038 items of data are available, covering 493,989 participants.
Some values have special meanings defined by Data-Coding
100291.
Defined-instances run from 0 to 3, labelled using Instancing
2.
| Maximum | 22 |
| Decile 9 | 3 |
| 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 = 1.05779
- Std.dev = 1.19811
- 2040 items above graph maximum of 6
- 616 items have value -3 (Prefer not to answer)
- 532 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
493,892 participants, 493,892 items
| Maximum | 22 |
| Decile 9 | 3 |
| 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 21 distinct values.
- Mean = 1.07694
- Std.dev = 1.22156
- 1800 items above graph maximum of 6
- 566 items have value -3 (Prefer not to answer)
- 496 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
20,062 participants, 20,062 items
| Maximum | 12 |
| Decile 9 | 2 |
| Decile 8 | 2 |
| Decile 7 | 1 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 13 distinct values.
- Mean = 0.936848
- Std.dev = 1.09635
- 247 items above graph maximum of 4
- 4 items have value -3 (Prefer not to answer)
- 11 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
88,595 participants, 88,595 items
| Maximum | 21 |
| 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 13 distinct values.
- Mean = 0.988817
- Std.dev = 1.09626
- 1099 items above graph maximum of 4
- 45 items have value -3 (Prefer not to answer)
- 22 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
12,489 participants, 12,489 items
| Maximum | 9 |
| 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 10 distinct values.
- Mean = 0.985262
- Std.dev = 1.07229
- 124 items above graph maximum of 4
- 1 items have value -3 (Prefer not to answer)
- 3 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many sisters do you have? (Please include those who have died, and twin sisters. Do not include half-sisters, step-sisters or adopted sisters)"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 25 then rejected
- If answer > 10 then participant asked to confirm
Field 1883 was collected from participants who indicated they were not adopted as a child, as defined by their answers to Field 1767
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
