Data
148,864 items of data are available, covering 121,578 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 | 85 |
| Decile 9 | 50 |
| Decile 8 | 40 |
| Decile 7 | 32 |
| Decile 6 | 25 |
| Median | 20 |
| Decile 4 | 16 |
| Decile 3 | 14 |
| Decile 2 | 11 |
| Decile 1 | 7 |
| Minimum | 1 |
|
|
- There are 85 distinct values.
- Mean = 25.1708
- Std.dev = 16.48
- 83 items have value -3 (Prefer not to answer)
- 18338 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
114,970 participants, 114,970 items
| Maximum | 70 |
| Decile 9 | 50 |
| Decile 8 | 40 |
| Decile 7 | 32 |
| Decile 6 | 26 |
| Median | 21 |
| Decile 4 | 16 |
| Decile 3 | 14 |
| Decile 2 | 11 |
| Decile 1 | 8 |
| Minimum | 1 |
|
|
- There are 70 distinct values.
- Mean = 25.2076
- Std.dev = 16.1276
- 72 items have value -3 (Prefer not to answer)
- 14914 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
4,836 participants, 4,836 items
| Maximum | 73 |
| Decile 9 | 53 |
| Decile 8 | 40 |
| Decile 7 | 32 |
| Decile 6 | 25 |
| Median | 20 |
| Decile 4 | 16 |
| Decile 3 | 13 |
| Decile 2 | 11 |
| Decile 1 | 7 |
| Minimum | 1 |
|
|
- There are 73 distinct values.
- Mean = 25.236
- Std.dev = 17.003
- 573 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
24,340 participants, 24,340 items
| Maximum | 84 |
| Decile 9 | 53.5 |
| Decile 8 | 40 |
| Decile 7 | 30 |
| Decile 6 | 25 |
| Median | 19 |
| Decile 4 | 15 |
| Decile 3 | 13 |
| Decile 2 | 10 |
| Decile 1 | 7 |
| Minimum | 1 |
|
|
- There are 84 distinct values.
- Mean = 24.9536
- Std.dev = 17.6143
- 9 items have value -3 (Prefer not to answer)
- 2390 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
4,718 participants, 4,718 items
| Maximum | 85 |
| Decile 9 | 55 |
| Decile 8 | 40 |
| Decile 7 | 30 |
| Decile 6 | 25 |
| Median | 20 |
| Decile 4 | 15 |
| Decile 3 | 13 |
| Decile 2 | 10 |
| Decile 1 | 7 |
| Minimum | 1 |
|
|
- There are 84 distinct values.
- Mean = 25.3593
- Std.dev = 18.0082
- 2 items have value -3 (Prefer not to answer)
- 461 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when the hayfever, rhinitis or eczema was first diagnosed?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > Participants age then rejected
- If answer < 10 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 3761 was collected from participants who indicated they were told by a doctor that they have had hayfever, allergic rhinitis or eczema, 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 hayfever, allergic rhinitis or eczema, as defined by their answers to Field 6152 |
2 Applications
| Application ID | Title |
|---|
| 669 | Distribution and biological, environmental and lifestyle determinants of visual function and of refractive error in adults (aged 40 to 69 years) in the UK. |
| 17435 | Exploring the genetics of irritable bowel syndrome: the ?bellygenes? initiative (project approved by bbmri-lpc) |
