Data
547,152 items of data are available, covering 464,345 participants.
Some values have special meanings defined by Data-Coding
100291.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are hours/week.
| Maximum | 168 |
| Decile 9 | 0 |
| Decile 8 | 0 |
| Decile 7 | 0 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 104 distinct values.
- Mean = 0.483977
- Std.dev = 4.27642
- 17050 items above graph maximum of 1
- 1670 items have value -3 (Prefer not to answer)
- 10994 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
462,665 participants, 462,665 items
| Maximum | 168 |
| Decile 9 | 0 |
| Decile 8 | 0 |
| Decile 7 | 0 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 103 distinct values.
- Mean = 0.540647
- Std.dev = 4.51632
- 16056 items above graph maximum of 1
- 1594 items have value -3 (Prefer not to answer)
- 9928 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
19,686 participants, 19,686 items
| Maximum | 168 |
| Decile 9 | 0 |
| Decile 8 | 0 |
| Decile 7 | 0 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 39 distinct values.
- Mean = 0.249807
- Std.dev = 3.24893
- 302 items above graph maximum of 1
- 14 items have value -3 (Prefer not to answer)
- 249 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
59,592 participants, 59,592 items
| Maximum | 168 |
| Decile 9 | 0 |
| Decile 8 | 0 |
| Decile 7 | 0 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 41 distinct values.
- Mean = 0.154901
- Std.dev = 2.3089
- 641 items above graph maximum of 1
- 61 items have value -3 (Prefer not to answer)
- 758 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
5,209 participants, 5,209 items
| Maximum | 168 |
| Decile 9 | 0 |
| Decile 8 | 0 |
| Decile 7 | 0 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 19 distinct values.
- Mean = 0.158283
- Std.dev = 2.94884
- 51 items above graph maximum of 1
- 1 items have value -3 (Prefer not to answer)
- 59 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "At home, about how many hours per WEEK are you exposed to other people's tobacco smoke?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 168 then rejected
- If answer > 100 then participant asked to confirm
If the participant activated the Help button they were shown the message:
Please give the number of hours in a typical week over the
last year that you have been exposed to other people's tobacco
smoke in the home environment.
|
Field 1269 was collected from all participants except those who indicated they currently smoke tobacco on most or all days, as defined by their answers to Field 1239
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
1 Related Data-Fields
| Field ID | Description | Relationship |
|---|
| 1239 | Current tobacco smoking | Current Field was collected from all participants except those who indicated they currently smoke tobacco on most or all days, as defined by their answers to Field 1239 |
