Data
250,686 items of data are available, covering 217,007 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 623 distinct values.
- Mean = 68.4849
- Std.dev = 40.6561
- 122 items below graph minimum of 0
- 592 items above graph maximum of 119
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
170,694 participants, 170,694 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 = 67.7279
- Std.dev = 32.1858
- 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+)
55,040 participants, 55,040 items
| Maximum | 4952 |
| Decile 9 | 83 |
| Decile 8 | 79 |
| Decile 7 | 76 |
| Decile 6 | 74 |
| Median | 71 |
| Decile 4 | 68 |
| Decile 3 | 63 |
| Decile 2 | 57 |
| Decile 1 | 48 |
| Minimum | -775 |
|
|
- There are 252 distinct values.
- Mean = 69.6565
- Std.dev = 62.6153
- 35 items below graph minimum of 0
- 119 items above graph maximum of 118
|
Instance 3 : First repeat imaging visit (2019+)
4,724 participants, 4,724 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 = 67.8698
- Std.dev = 29.3636
- 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%
