Data
143,851 items of data are available, covering 123,912 participants.
Some values have special meanings defined by Data-Coding
100291.
Defined-instances run from 0 to 3, labelled using Instancing
2.
| Maximum | 200 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 64 distinct values.
- Mean = 2.95814
- Std.dev = 7.37864
- 3138 items above graph maximum of 12
- 380 items have value -3 (Prefer not to answer)
- 12653 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
120,011 participants, 120,011 items
| Maximum | 200 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 61 distinct values.
- Mean = 2.95901
- Std.dev = 7.50286
- 2581 items above graph maximum of 12
- 340 items have value -3 (Prefer not to answer)
- 10709 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
5,067 participants, 5,067 items
| Maximum | 100 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 26 distinct values.
- Mean = 2.87285
- Std.dev = 5.90024
- 116 items above graph maximum of 12
- 9 items have value -3 (Prefer not to answer)
- 410 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
17,226 participants, 17,226 items
| Maximum | 200 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 35 distinct values.
- Mean = 2.97992
- Std.dev = 6.91739
- 405 items above graph maximum of 12
- 29 items have value -3 (Prefer not to answer)
- 1407 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
1,547 participants, 1,547 items
| Maximum | 200 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 1 |
| Decile 3 | 1 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 21 distinct values.
- Mean = 2.92807
- Std.dev = 7.08057
- 36 items above graph maximum of 12
- 2 items have value -3 (Prefer not to answer)
- 127 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many times did you try to give up smoking before you were successful?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 200 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.
|
Field 2926 was collected from participants who indicated that in the past they smoked tobacco on most or all days, as defined by their answers to Field 1249 and that during the time they smoked they stopped for more than 6 months, as defined by their answers to Field 1249
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
