Data
12,320 items of data are available, covering 11,122 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 | 84 |
| Decile 9 | 63 |
| Decile 8 | 59 |
| Decile 7 | 55 |
| Decile 6 | 50 |
| Median | 46 |
| Decile 4 | 41 |
| Decile 3 | 35 |
| Decile 2 | 29 |
| Decile 1 | 24 |
| Minimum | 18 |
|
|
- There are 66 distinct values.
- Mean = 44.6444
- Std.dev = 14.4814
- 14 items have value -3 (Prefer not to answer)
- 713 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
9,948 participants, 9,948 items
| Maximum | 70 |
| Decile 9 | 61 |
| Decile 8 | 57 |
| Decile 7 | 53 |
| Decile 6 | 49 |
| Median | 45 |
| Decile 4 | 40 |
| Decile 3 | 33 |
| Decile 2 | 28 |
| Decile 1 | 24 |
| Minimum | 18 |
|
|
- There are 53 distinct values.
- Mean = 43.0462
- Std.dev = 13.7639
- 13 items have value -3 (Prefer not to answer)
- 618 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
390 participants, 390 items
| Maximum | 74 |
| Decile 9 | 65 |
| Decile 8 | 61 |
| Decile 7 | 57 |
| Decile 6 | 53 |
| Median | 50 |
| Decile 4 | 44 |
| Decile 3 | 35 |
| Decile 2 | 30 |
| Decile 1 | 26 |
| Minimum | 19 |
|
|
- There are 56 distinct values.
- Mean = 46.7333
- Std.dev = 14.7228
- 15 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
1,754 participants, 1,754 items
| Maximum | 84 |
| Decile 9 | 70 |
| Decile 8 | 66 |
| Decile 7 | 62 |
| Decile 6 | 58 |
| Median | 55 |
| Decile 4 | 50 |
| Decile 3 | 45 |
| Decile 2 | 36 |
| Decile 1 | 27 |
| Minimum | 18 |
|
|
- There are 65 distinct values.
- Mean = 51.7594
- Std.dev = 15.4456
- 1 items have value -3 (Prefer not to answer)
- 74 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
228 participants, 228 items
| Maximum | 83 |
| Decile 9 | 72 |
| Decile 8 | 67 |
| Decile 7 | 65 |
| Decile 6 | 60 |
| Median | 56 |
| Decile 4 | 53 |
| Decile 3 | 50 |
| Decile 2 | 42 |
| Decile 1 | 29 |
| Minimum | 18 |
|
|
- There are 59 distinct values.
- Mean = 54.3829
- Std.dev = 15.4238
- 6 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when the blood clot in the leg (DVT) 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 4012 was collected from participants who indicated they were told by a doctor that they have had a Blood clot in the leg (DVT) , 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 a Blood clot in the leg (DVT) , as defined by their answers to Field 6152 |
