Data
5,247 items of data are available, covering 4,904 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 | 83 |
| Decile 9 | 68 |
| Decile 8 | 64 |
| Decile 7 | 60 |
| Decile 6 | 57 |
| Median | 54 |
| Decile 4 | 50 |
| Decile 3 | 44 |
| Decile 2 | 35 |
| Decile 1 | 20 |
| Minimum | 0 |
|
|
- There are 84 distinct values.
- Mean = 48.8892
- Std.dev = 18.219
- 21 items have value -3 (Prefer not to answer)
- 164 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
2,449 participants, 2,449 items
| Maximum | 70 |
| Decile 9 | 63 |
| Decile 8 | 60 |
| Decile 7 | 57 |
| Decile 6 | 53 |
| Median | 50 |
| Decile 4 | 45 |
| Decile 3 | 40 |
| Decile 2 | 30 |
| Decile 1 | 15 |
| Minimum | 0 |
|
|
- There are 71 distinct values.
- Mean = 44.5844
- Std.dev = 17.7665
- 15 items have value -3 (Prefer not to answer)
- 81 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
495 participants, 495 items
| Maximum | 74 |
| Decile 9 | 66 |
| Decile 8 | 63 |
| Decile 7 | 60 |
| Decile 6 | 58 |
| Median | 54.5 |
| Decile 4 | 50 |
| Decile 3 | 45 |
| Decile 2 | 40 |
| Decile 1 | 22.5 |
| Minimum | 1 |
|
|
- There are 69 distinct values.
- Mean = 49.4172
- Std.dev = 17.074
- 18 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
2,084 participants, 2,084 items
| Maximum | 83 |
| Decile 9 | 71 |
| Decile 8 | 67 |
| Decile 7 | 64 |
| Decile 6 | 61 |
| Median | 58 |
| Decile 4 | 54 |
| Decile 3 | 50 |
| Decile 2 | 41 |
| Decile 1 | 25 |
| Minimum | 0 |
|
|
- There are 84 distinct values.
- Mean = 53.1568
- Std.dev = 18.0165
- 6 items have value -3 (Prefer not to answer)
- 63 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
219 participants, 219 items
| Maximum | 78 |
| Decile 9 | 71 |
| Decile 8 | 67 |
| Decile 7 | 64 |
| Decile 6 | 61 |
| Median | 58.5 |
| Decile 4 | 55 |
| Decile 3 | 53 |
| Decile 2 | 46 |
| Decile 1 | 28 |
| Minimum | 1 |
|
|
- There are 58 distinct values.
- Mean = 54.7788
- Std.dev = 16.129
- 2 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when the other serious eye condition 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 5945 was collected from participants who indicated they have another serious eye condition (i.e. not diabetes, glaucoma, trauma, cataract or macular degeneration), as defined by their answers to Field 6148
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 |
|---|
| 6148 | Eye problems/disorders | Current Field was collected from participants who indicated they have another serious eye condition (i.e. not diabetes, glaucoma, trauma, cataract or macular degeneration), as defined by their answers to ~F |
