Data
9,614 items of data are available, covering 9,196 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 | 80 |
| Decile 9 | 64 |
| Decile 8 | 60 |
| Decile 7 | 57 |
| Decile 6 | 54 |
| Median | 50 |
| Decile 4 | 45 |
| Decile 3 | 38 |
| Decile 2 | 20 |
| Decile 1 | 8 |
| Minimum | 1 |
|
|
- There are 80 distinct values.
- Mean = 42.929
- Std.dev = 20.2922
- 39 items have value -3 (Prefer not to answer)
- 1705 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
8,310 participants, 8,310 items
| Maximum | 70 |
| Decile 9 | 62 |
| Decile 8 | 60 |
| Decile 7 | 56 |
| Decile 6 | 53 |
| Median | 49 |
| Decile 4 | 43 |
| Decile 3 | 35 |
| Decile 2 | 19 |
| Decile 1 | 7 |
| Minimum | 1 |
|
|
- There are 70 distinct values.
- Mean = 41.8545
- Std.dev = 19.9527
- 37 items have value -3 (Prefer not to answer)
- 1550 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
258 participants, 258 items
| Maximum | 74 |
| Decile 9 | 66 |
| Decile 8 | 63 |
| Decile 7 | 60 |
| Decile 6 | 56.5 |
| Median | 54 |
| Decile 4 | 50 |
| Decile 3 | 44 |
| Decile 2 | 35 |
| Decile 1 | 11.5 |
| Minimum | 1 |
|
|
- There are 57 distinct values.
- Mean = 47.5973
- Std.dev = 18.986
- 37 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
950 participants, 950 items
| Maximum | 80 |
| Decile 9 | 71 |
| Decile 8 | 67 |
| Decile 7 | 64 |
| Decile 6 | 60 |
| Median | 57 |
| Decile 4 | 52 |
| Decile 3 | 45 |
| Decile 2 | 30 |
| Decile 1 | 10 |
| Minimum | 1 |
|
|
- There are 78 distinct values.
- Mean = 49.7811
- Std.dev = 21.2592
- 2 items have value -3 (Prefer not to answer)
- 112 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
96 participants, 96 items
| Maximum | 77 |
| Decile 9 | 72 |
| Decile 8 | 67 |
| Decile 7 | 65 |
| Decile 6 | 61 |
| Median | 58 |
| Decile 4 | 53 |
| Decile 3 | 45 |
| Decile 2 | 11 |
| Decile 1 | 7 |
| Minimum | 3 |
|
|
- There are 42 distinct values.
- Mean = 48.0778
- Std.dev = 24.1377
- 6 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when the emphysema/chronic bronchitis was first diagnosed?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > Participants age then rejected
- If answer < 40 then participant asked to confirm
- If answer > 69 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 3992 was collected from participants who indicated they were told by a doctor that they have had emphysema or chronic bronchitis, as defined by their answers to Field 6152
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
1 Related Data-Field
| Field ID | Description | Relationship |
|---|
| 6152 | Blood clot, DVT, bronchitis, emphyse ... | Current Field was collected from participants who indicated they were told by a doctor that they have had emphysema or chronic bronchitis, as defined by their answers to Field 6152 |
