Data
259,237 items of data are available, covering 222,063 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 628 distinct values.
- Mean = 68.4303
- Std.dev = 40.2071
- 126 items below graph minimum of 0
- 603 items above graph maximum of 119
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
170,692 participants, 170,692 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 = 67.728
- Std.dev = 32.1859
- 83 items below graph minimum of 0
- 423 items above graph maximum of 120
|
Instance 1 : First repeat assessment visit (2012-13)
20,227 participants, 20,227 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 = 71.8287
- Std.dev = 29.2185
- 3 items below graph minimum of 0
- 43 items above graph maximum of 111
|
Instance 2 : Imaging visit (2014+)
62,796 participants, 62,796 items
| Maximum | 4952 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 73 |
| Median | 71 |
| Decile 4 | 67 |
| Decile 3 | 63 |
| Decile 2 | 57 |
| Decile 1 | 48 |
| Minimum | -775 |
|
|
- There are 261 distinct values.
- Mean = 69.2391
- Std.dev = 59.2431
- 38 items below graph minimum of 0
- 129 items above graph maximum of 118
|
Instance 3 : First repeat imaging visit (2019+)
5,522 participants, 5,522 items
| Maximum | 1237 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 74 |
| Median | 71 |
| Decile 4 | 67 |
| Decile 3 | 63 |
| Decile 2 | 57 |
| Decile 1 | 48 |
| Minimum | -439 |
|
|
- There are 92 distinct values.
- Mean = 68.4913
- Std.dev = 27.69
- 2 items below graph minimum of 0
- 7 items above graph maximum of 118
|
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%
