Data
2,750 items of data are available, covering 2,625 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 | 81 |
| Decile 9 | 66 |
| Decile 8 | 63 |
| Decile 7 | 60 |
| Decile 6 | 58 |
| Median | 55 |
| Decile 4 | 53 |
| Decile 3 | 50 |
| Decile 2 | 45 |
| Decile 1 | 40 |
| Minimum | 0 |
|
|
- There are 78 distinct values.
- Mean = 53.173
- Std.dev = 13.5493
- 12 items have value -3 (Prefer not to answer)
- 206 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
1,834 participants, 1,834 items
| Maximum | 70 |
| Decile 9 | 64 |
| Decile 8 | 61 |
| Decile 7 | 59 |
| Decile 6 | 56 |
| Median | 54 |
| Decile 4 | 50 |
| Decile 3 | 48 |
| Decile 2 | 44 |
| Decile 1 | 37 |
| Minimum | 0 |
|
|
- There are 67 distinct values.
- Mean = 50.892
- Std.dev = 13.5677
- 10 items have value -3 (Prefer not to answer)
- 139 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
220 participants, 220 items
| Maximum | 75 |
| Decile 9 | 68 |
| Decile 8 | 65 |
| Decile 7 | 62 |
| Decile 6 | 60 |
| Median | 58 |
| Decile 4 | 56 |
| Decile 3 | 54.5 |
| Decile 2 | 50 |
| Decile 1 | 46.5 |
| Minimum | 0 |
|
|
- There are 39 distinct values.
- Mean = 57.0142
- Std.dev = 10.4532
- 3 items below graph minimum of 25
- 8 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
648 participants, 648 items
| Maximum | 81 |
| Decile 9 | 71 |
| Decile 8 | 68 |
| Decile 7 | 65 |
| Decile 6 | 62 |
| Median | 60 |
| Decile 4 | 57 |
| Decile 3 | 55 |
| Decile 2 | 50 |
| Decile 1 | 45 |
| Minimum | 1 |
|
|
- There are 60 distinct values.
- Mean = 58.0492
- Std.dev = 12.7757
- 2 items have value -3 (Prefer not to answer)
- 56 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
48 participants, 48 items
| Maximum | 76 |
| Decile 9 | 69.5 |
| Decile 8 | 68 |
| Decile 7 | 62 |
| Decile 6 | 60 |
| Median | 58 |
| Decile 4 | 55 |
| Decile 3 | 53.5 |
| Decile 2 | 50 |
| Decile 1 | 39.5 |
| Minimum | 3 |
|
|
- There are 26 distinct values.
- Mean = 56.5556
- Std.dev = 13.9468
- 3 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when diabetes related eye disease 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 5901 was collected from participants who indicated they have diabetes related eye disease, 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 diabetes related eye disease, as defined by their answers to Field 6148 |
