Data
633,925 items of data are available, covering 493,799 participants.
Some values have special meanings defined by Data-Coding
100291.
Defined-instances run from 0 to 3, labelled using Instancing
2.
| Maximum | 25 |
| 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 24 distinct values.
- Mean = 1.13324
- Std.dev = 1.25679
- 3036 items above graph maximum of 6
- 678 items have value -3 (Prefer not to answer)
- 591 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
493,682 participants, 493,682 items
| Maximum | 25 |
| 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 24 distinct values.
- Mean = 1.15728
- Std.dev = 1.28977
- 2674 items above graph maximum of 6
- 606 items have value -3 (Prefer not to answer)
- 540 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
20,048 participants, 20,048 items
| Maximum | 12 |
| 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 12 distinct values.
- Mean = 1.0026
- Std.dev = 1.12808
- 254 items above graph maximum of 4
- 6 items have value -3 (Prefer not to answer)
- 10 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
99,553 participants, 99,553 items
| Maximum | 13 |
| 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 14 distinct values.
- Mean = 1.05287
- Std.dev = 1.12933
- 1356 items above graph maximum of 4
- 59 items have value -3 (Prefer not to answer)
- 33 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
20,642 participants, 20,642 items
| Maximum | 10 |
| 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 11 distinct values.
- Mean = 1.07364
- Std.dev = 1.12855
- 294 items above graph maximum of 4
- 7 items have value -3 (Prefer not to answer)
- 8 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many brothers do you have? (Please include those who have died, and twin brothers. Do not include half-brothers, step-brothers or adopted brothers)"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 25 then rejected
- If answer > 10 then participant asked to confirm
Field 1873 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"
