Data
1,219,438 items of data are available, covering 501,317 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 1.
Units of measurement are seconds.
| Maximum | 8522 |
| Decile 9 | 552 |
| Decile 8 | 411 |
| Decile 7 | 328 |
| Decile 6 | 262 |
| Median | 194 |
| Decile 4 | 124 |
| Decile 3 | 90 |
| Decile 2 | 68 |
| Decile 1 | 48 |
| Minimum | 3 |
|
|
- There are 2220 distinct values.
- Mean = 256.335
- Std.dev = 231.532
- 12049 items above graph maximum of 1056
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,288 participants, 1,002,126 items
| Maximum | 4281 |
| Decile 9 | 513 |
| Decile 8 | 391 |
| Decile 7 | 316 |
| Decile 6 | 255 |
| Median | 193 |
| Decile 4 | 129 |
| Decile 3 | 95 |
| Decile 2 | 73 |
| Decile 1 | 53 |
| Minimum | 5 |
|
|
- There are 2066 distinct values.
- Mean = 246.836
- Std.dev = 210.688
- 9693 items above graph maximum of 973
|
Instance 1 : First repeat assessment visit (2012-13)
20,327 participants, 40,651 items
| Maximum | 2095 |
| Decile 9 | 611 |
| Decile 8 | 475 |
| Decile 7 | 381 |
| Decile 6 | 308 |
| Median | 217 |
| Decile 4 | 102 |
| Decile 3 | 76 |
| Decile 2 | 61 |
| Decile 1 | 49 |
| Minimum | 10 |
|
|
- There are 1202 distinct values.
- Mean = 274.082
- Std.dev = 239.61
- 115 items above graph maximum of 1173
|
Instance 2 : Imaging visit (2014+)
78,825 participants, 157,205 items
| Maximum | 8522 |
| Decile 9 | 744 |
| Decile 8 | 549 |
| Decile 7 | 416 |
| Decile 6 | 311 |
| Median | 201 |
| Decile 4 | 86 |
| Decile 3 | 58 |
| Decile 2 | 42 |
| Decile 1 | 28 |
| Minimum | 3 |
|
|
- There are 1923 distinct values.
- Mean = 303.307
- Std.dev = 316.787
- 840 items above graph maximum of 1460
|
Instance 3 : First repeat imaging visit (2019+)
9,804 participants, 19,456 items
| Maximum | 2548 |
| Decile 9 | 818.5 |
| Decile 8 | 610 |
| Decile 7 | 461 |
| Decile 6 | 341 |
| Median | 210 |
| Decile 4 | 93 |
| Decile 3 | 61 |
| Decile 2 | 42 |
| Decile 1 | 27 |
| Minimum | 4 |
|
|
- There are 1440 distinct values.
- Mean = 329.014
- Std.dev = 338.078
- 62 items above graph maximum of 1610
|
Notes
The time since interview start at which the blood pressure screen was shown is useful because it can be used to calculate the interval between the two measurements of blood pressure. This interval is variable because it, for efficiency reasons, it was impractical to use a fixed time during the UK Biobank Assessments.
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