Data
243,381 items of data are available, covering 212,252 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
| Maximum | 4952 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 73 |
| Median | 70 |
| Decile 4 | 67 |
| Decile 3 | 62 |
| Decile 2 | 56 |
| Decile 1 | 47 |
| Minimum | -4813 |
|
|
- There are 617 distinct values.
- Mean = 68.5296
- Std.dev = 41.0666
- 118 items below graph minimum of 0
- 582 items above graph maximum of 119
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
170,712 participants, 170,712 items
| Maximum | 1248 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 73 |
| Median | 70 |
| Decile 4 | 66 |
| Decile 3 | 61 |
| Decile 2 | 55 |
| Decile 1 | 46 |
| Minimum | -4813 |
|
|
- There are 509 distinct values.
- Mean = 67.7276
- Std.dev = 32.1844
- 83 items below graph minimum of 0
- 423 items above graph maximum of 120
|
Instance 1 : First repeat assessment visit (2012-13)
20,228 participants, 20,228 items
| Maximum | 1121 |
| Decile 9 | 83 |
| Decile 8 | 80 |
| Decile 7 | 78 |
| Decile 6 | 75 |
| Median | 73 |
| Decile 4 | 70 |
| Decile 3 | 67 |
| Decile 2 | 63 |
| Decile 1 | 55 |
| Minimum | -136 |
|
|
- There are 136 distinct values.
- Mean = 71.8295
- Std.dev = 29.218
- 3 items below graph minimum of 0
- 43 items above graph maximum of 111
|
Instance 2 : Imaging visit (2014+)
47,766 participants, 47,766 items
| Maximum | 4952 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 74 |
| Median | 71 |
| Decile 4 | 68 |
| Decile 3 | 64 |
| Decile 2 | 58 |
| Decile 1 | 49 |
| Minimum | -775 |
|
|
- There are 240 distinct values.
- Mean = 70.0654
- Std.dev = 66.596
- 31 items below graph minimum of 0
- 109 items above graph maximum of 117
|
Instance 3 : First repeat imaging visit (2019+)
4,675 participants, 4,675 items
| Maximum | 1237 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 73 |
| Median | 70 |
| Decile 4 | 66 |
| Decile 3 | 61 |
| Decile 2 | 55 |
| Decile 1 | 47 |
| Minimum | -439 |
|
|
- There are 90 distinct values.
- Mean = 67.8445
- Std.dev = 29.4964
- 1 item below graph minimum of 0
- 6 items above graph maximum of 119
|
Notes
reflection index is a measure of reflection
A digital volume pulse can be considered to be the summation of a direct and a reflected component. The direct component is due to transmission of a pressure wave from the left ventricle to the finger via the most direct route. The reflected component is formed by pressure transmitted from the heart to the lower body where it is reflected back up the aorta and thence to the finger. if 'b' is the height of direct wave peak and 'a' is the height of reflected wave peak the reflected index = (a/b) * 100%
