Data
529,491 items of data are available, covering 498,076 participants.
Some values have special meanings defined by Data-Coding
100291.
Defined-instances run from 0 to 2, labelled using Instancing
2.
Units of measurement are times.
| Maximum | 999 |
| Decile 9 | 5 |
| Decile 8 | 2 |
| Decile 7 | 2 |
| Decile 6 | 1 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 55 distinct values.
- Mean = 1.627
- Std.dev = 5.05181
- 5626 items above graph maximum of 10
- 851 items have value -3 (Prefer not to answer)
- 129265 items have value -1 (Do not know)
|
3 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
497,499 participants, 497,499 items
| Maximum | 999 |
| Decile 9 | 5 |
| Decile 8 | 2 |
| Decile 7 | 2 |
| Decile 6 | 1 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 54 distinct values.
- Mean = 1.61429
- Std.dev = 5.10025
- 5261 items above graph maximum of 10
- 841 items have value -3 (Prefer not to answer)
- 121179 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
20,328 participants, 20,328 items
| Maximum | 150 |
| Decile 9 | 5 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 26 distinct values.
- Mean = 1.75079
- Std.dev = 3.64239
- 226 items above graph maximum of 10
- 5 items have value -3 (Prefer not to answer)
- 5183 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
11,664 participants, 11,664 items
| Maximum | 300 |
| Decile 9 | 5 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 1 |
| Median | 1 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 24 distinct values.
- Mean = 1.95797
- Std.dev = 5.04722
- 139 items above graph maximum of 10
- 5 items have value -3 (Prefer not to answer)
- 2903 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "Before the age of 15, how many times did you suffer sunburn that was painful for at least 2 days or caused blistering?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 999 then rejected
- If answer > 20 then participant asked to confirm
If the participant activated the Help button they were shown the message:
If you are unsure, please provide an estimate or select Do not know.
|
This question was dropped from the touchscreen protocol on 24/10/2016.
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
0 Related Data-Fields
There are no related data-fields
