Data
317,417 items of data are available, covering 272,847 participants.
Some values have special meanings defined by Data-Coding
100584.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are children.
| Maximum | 22 |
| Decile 9 | 3 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 18 distinct values.
- Mean = 1.80857
- Std.dev = 1.1964
- 530 items above graph maximum of 6
- 400 items have value -3 (Prefer not to answer)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
272,834 participants, 272,834 items
| Maximum | 22 |
| Decile 9 | 3 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 18 distinct values.
- Mean = 1.82191
- Std.dev = 1.20166
- 490 items above graph maximum of 6
- 352 items have value -3 (Prefer not to answer)
|
Instance 1 : First repeat assessment visit (2012-13)
10,401 participants, 10,401 items
| Maximum | 8 |
| Decile 9 | 3 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 9 distinct values.
- Mean = 1.75228
- Std.dev = 1.16454
- 12 items above graph maximum of 6
- 6 items have value -3 (Prefer not to answer)
|
Instance 2 : Imaging visit (2014+)
31,464 participants, 31,464 items
| Maximum | 9 |
| Decile 9 | 3 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 10 distinct values.
- Mean = 1.72243
- Std.dev = 1.15998
- 27 items above graph maximum of 6
- 41 items have value -3 (Prefer not to answer)
|
Instance 3 : First repeat imaging visit (2019+)
2,718 participants, 2,718 items
| Maximum | 7 |
| Decile 9 | 3 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 8 distinct values.
- Mean = 1.68274
- Std.dev = 1.147
- 1 item above graph maximum of 6
- 1 items have value -3 (Prefer not to answer)
|
Notes
ACE touchscreen question "How many children have you given birth to? (Please include live births only)"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 25 then rejected
- If answer > 12 then participant asked to confirm
Coding 100584 defines 1 special value:
- -3 represents "Prefer not to answer"
