Data
174,847 items of data are available, covering 149,833 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 | 87 |
| Decile 9 | 64 |
| Decile 8 | 60 |
| Decile 7 | 58 |
| Decile 6 | 55 |
| Median | 53 |
| Decile 4 | 50 |
| Decile 3 | 48 |
| Decile 2 | 44 |
| Decile 1 | 40 |
| Minimum | 18 |
|
|
- There are 69 distinct values.
- Mean = 51.5948
- Std.dev = 10.3241
- 219 items have value -3 (Prefer not to answer)
- 17221 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
134,546 participants, 134,546 items
| Maximum | 70 |
| Decile 9 | 62 |
| Decile 8 | 60 |
| Decile 7 | 57 |
| Decile 6 | 55 |
| Median | 52 |
| Decile 4 | 50 |
| Decile 3 | 46 |
| Decile 2 | 43 |
| Decile 1 | 38 |
| Minimum | 18 |
|
|
- There are 53 distinct values.
- Mean = 50.6307
- Std.dev = 9.9471
- 169 items have value -3 (Prefer not to answer)
- 13261 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
5,852 participants, 5,852 items
| Maximum | 74 |
| Decile 9 | 65 |
| Decile 8 | 60 |
| Decile 7 | 59 |
| Decile 6 | 56 |
| Median | 55 |
| Decile 4 | 50 |
| Decile 3 | 50 |
| Decile 2 | 45 |
| Decile 1 | 40 |
| Minimum | 18 |
|
|
- There are 57 distinct values.
- Mean = 52.7532
- Std.dev = 9.90499
- 8 items have value -3 (Prefer not to answer)
- 557 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
28,312 participants, 28,312 items
| Maximum | 84 |
| Decile 9 | 68 |
| Decile 8 | 65 |
| Decile 7 | 60 |
| Decile 6 | 59 |
| Median | 55 |
| Decile 4 | 53 |
| Decile 3 | 50 |
| Decile 2 | 45 |
| Decile 1 | 40 |
| Minimum | 18 |
|
|
- There are 67 distinct values.
- Mean = 54.9137
- Std.dev = 10.9463
- 35 items have value -3 (Prefer not to answer)
- 2777 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
6,137 participants, 6,137 items
| Maximum | 87 |
| Decile 9 | 70 |
| Decile 8 | 65 |
| Decile 7 | 63 |
| Decile 6 | 60 |
| Median | 57 |
| Decile 4 | 55 |
| Decile 3 | 50 |
| Decile 2 | 47 |
| Decile 1 | 40 |
| Minimum | 18 |
|
|
- There are 69 distinct values.
- Mean = 56.3205
- Std.dev = 11.2459
- 7 items have value -3 (Prefer not to answer)
- 626 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "What was your age when the high blood pressure 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 2966 was collected from participants who indicated they were told by a doctor that they have had high blood pressure, 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 high blood pressure, as defined by their answers to Field 6150 |
