Data
1,918 items of data are available, covering 1,829 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 years.
| Maximum | 70 |
| Decile 9 | 55 |
| Decile 8 | 49 |
| Decile 7 | 44 |
| Decile 6 | 40 |
| Median | 35 |
| Decile 4 | 33 |
| Decile 3 | 30 |
| Decile 2 | 27 |
| Decile 1 | 24 |
| Minimum | 13 |
|
|
- There are 57 distinct values.
- Mean = 37.638
- Std.dev = 11.7713
- 17 items have value -3 (Prefer not to answer)
- 78 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
1,786 participants, 1,786 items
| Maximum | 70 |
| Decile 9 | 55 |
| Decile 8 | 49 |
| Decile 7 | 44 |
| Decile 6 | 40 |
| Median | 35 |
| Decile 4 | 33 |
| Decile 3 | 30 |
| Decile 2 | 27 |
| Decile 1 | 23 |
| Minimum | 13 |
|
|
- There are 57 distinct values.
- Mean = 37.7077
- Std.dev = 11.8034
- 15 items have value -3 (Prefer not to answer)
- 74 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
42 participants, 42 items
| Maximum | 63 |
| Decile 9 | 51.5 |
| Decile 8 | 45 |
| Decile 7 | 40 |
| Decile 6 | 40 |
| Median | 35 |
| Decile 4 | 30 |
| Decile 3 | 26.5 |
| Decile 2 | 25 |
| Decile 1 | 22.5 |
| Minimum | 20 |
|
|
- There are 20 distinct values.
- Mean = 36.7317
- Std.dev = 12.1234
- 1 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
78 participants, 78 items
| Maximum | 65 |
| Decile 9 | 50 |
| Decile 8 | 45 |
| Decile 7 | 40 |
| Decile 6 | 35.5 |
| Median | 34 |
| Decile 4 | 30 |
| Decile 3 | 30 |
| Decile 2 | 25 |
| Decile 1 | 24.5 |
| Minimum | 18 |
|
|
- There are 26 distinct values.
- Mean = 36.0274
- Std.dev = 10.6732
- 2 items have value -3 (Prefer not to answer)
- 3 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
12 participants, 12 items
Too few values for statistical summary.
Notes
ACE touchscreen question "How old were you when you last smoked cigarettes on most days?"
The following checks were performed:
- If answer < 5 then rejected
- If answer < 12 then participant asked to confirm
Field 6194 was collected from participants who indicated they currently smoke cigars and pipes, as defined by their answers to Field 3446 and previously smoked cigarettes on most or all days, as defined by their answers to Field 3446
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
2 Related Data-Fields
| Field ID | Description | Relationship |
|---|
| 5959 | Previously smoked cigarettes on most ... | Field 5959 affects who was asked to answer Current Field |
| 3446 | Type of tobacco currently smoked | Field 3446 affects who was asked to answer Current Field |
