Data
605,537 items of data are available, covering 494,000 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 = 1.13671
- Std.dev = 1.26298
- 2969 items above graph maximum of 6
- 667 items have value -3 (Prefer not to answer)
- 582 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
493,909 participants, 493,909 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 = 1.15718
- Std.dev = 1.28964
- 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)
20,062 participants, 20,062 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 = 1.00229
- Std.dev = 1.12795
- 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+)
82,869 participants, 82,869 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 = 1.05401
- Std.dev = 1.13743
- 1166 items above graph maximum of 4
- 54 items have value -3 (Prefer not to answer)
- 29 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
8,697 participants, 8,697 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 = 1.0742
- Std.dev = 1.10337
- 108 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 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"
