Data
9,599 items of data are available, covering 8,888 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 | 66 |
| Decile 8 | 63 |
| Decile 7 | 61 |
| Decile 6 | 59 |
| Median | 57 |
| Decile 4 | 54 |
| Decile 3 | 51 |
| Decile 2 | 48 |
| Decile 1 | 42 |
| Minimum | 18 |
|
|
- There are 66 distinct values.
- Mean = 55.1908
- Std.dev = 10.2165
- 20 items have value -3 (Prefer not to answer)
- 312 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
7,576 participants, 7,576 items
| Maximum | 70 |
| Decile 9 | 64 |
| Decile 8 | 62 |
| Decile 7 | 60 |
| Decile 6 | 58 |
| Median | 55 |
| Decile 4 | 53 |
| Decile 3 | 50 |
| Decile 2 | 46 |
| Decile 1 | 41 |
| Minimum | 18 |
|
|
- There are 53 distinct values.
- Mean = 53.57
- Std.dev = 9.47677
- 16 items have value -3 (Prefer not to answer)
- 253 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
353 participants, 353 items
| Maximum | 73 |
| Decile 9 | 68 |
| Decile 8 | 65 |
| Decile 7 | 63 |
| Decile 6 | 60 |
| Median | 58 |
| Decile 4 | 56 |
| Decile 3 | 52 |
| Decile 2 | 49 |
| Decile 1 | 43 |
| Minimum | 23 |
|
|
- There are 47 distinct values.
- Mean = 56.7139
- Std.dev = 9.77313
- 1 items have value -3 (Prefer not to answer)
- 13 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
1,461 participants, 1,461 items
| Maximum | 83 |
| Decile 9 | 74.5 |
| Decile 8 | 71 |
| Decile 7 | 69 |
| Decile 6 | 66 |
| Median | 64 |
| Decile 4 | 61 |
| Decile 3 | 58 |
| Decile 2 | 54 |
| Decile 1 | 49 |
| Minimum | 20 |
|
|
- There are 60 distinct values.
- Mean = 62.2172
- Std.dev = 10.4524
- 2 items have value -3 (Prefer not to answer)
- 41 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
209 participants, 209 items
| Maximum | 83 |
| Decile 9 | 75 |
| Decile 8 | 71 |
| Decile 7 | 69 |
| Decile 6 | 65 |
| Median | 63 |
| Decile 4 | 60 |
| Decile 3 | 57 |
| Decile 2 | 54 |
| Decile 1 | 48 |
| Minimum | 25 |
|
|
- There are 47 distinct values.
- Mean = 61.9064
- Std.dev = 11.0054
- 1 items have value -3 (Prefer not to answer)
- 5 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when the stroke 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 4056 was collected from participants who indicated they were told by a doctor that they have had a stroke, as defined by their answers to Field 6150
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 |
|---|
| 6150 | Vascular/heart problems diagnosed by ... | Current Field was collected from participants who indicated they were told by a doctor that they have had a stroke, as defined by their answers to Field 6150 |
