Data
250,686 items of data are available, covering 217,007 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
| Maximum | 94 |
| Decile 9 | 51 |
| Decile 8 | 48 |
| Decile 7 | 46 |
| Decile 6 | 44 |
| Median | 43 |
| Decile 4 | 41 |
| Decile 3 | 40 |
| Decile 2 | 38 |
| Decile 1 | 36 |
| Minimum | -1 |
|
|
- There are 73 distinct values.
- Mean = 43.4061
- Std.dev = 6.36312
- 22 items below graph minimum of 21
- 1215 items above graph maximum of 66
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
170,694 participants, 170,694 items
| Maximum | 94 |
| Decile 9 | 51 |
| Decile 8 | 48 |
| Decile 7 | 46 |
| Decile 6 | 45 |
| Median | 43 |
| Decile 4 | 42 |
| Decile 3 | 40 |
| Decile 2 | 38 |
| Decile 1 | 36 |
| Minimum | 17 |
|
|
- There are 70 distinct values.
- Mean = 43.5599
- Std.dev = 6.35328
- 13 items below graph minimum of 21
- 901 items above graph maximum of 66
|
Instance 1 : First repeat assessment visit (2012-13)
20,228 participants, 20,228 items
| Maximum | 74 |
| Decile 9 | 49 |
| Decile 8 | 47 |
| Decile 7 | 45 |
| Decile 6 | 43 |
| Median | 42 |
| Decile 4 | 40 |
| Decile 3 | 39 |
| Decile 2 | 37 |
| Decile 1 | 35 |
| Minimum | 20 |
|
|
- There are 53 distinct values.
- Mean = 42.048
- Std.dev = 5.88084
- 2 items below graph minimum of 21
- 84 items above graph maximum of 63
|
Instance 2 : Imaging visit (2014+)
55,040 participants, 55,040 items
| Maximum | 90 |
| Decile 9 | 51 |
| Decile 8 | 49 |
| Decile 7 | 47 |
| Decile 6 | 45 |
| Median | 43 |
| Decile 4 | 42 |
| Decile 3 | 40 |
| Decile 2 | 38 |
| Decile 1 | 36 |
| Minimum | -1 |
|
|
- There are 66 distinct values.
- Mean = 43.5621
- Std.dev = 6.51189
- 7 items below graph minimum of 21
- 262 items above graph maximum of 66
|
Instance 3 : First repeat imaging visit (2019+)
4,724 participants, 4,724 items
| Maximum | 70 |
| Decile 9 | 49 |
| Decile 8 | 47 |
| Decile 7 | 44 |
| Decile 6 | 43 |
| Median | 41 |
| Decile 4 | 40 |
| Decile 3 | 38 |
| Decile 2 | 37 |
| Decile 1 | 35 |
| Minimum | 22 |
|
|
- There are 49 distinct values.
- Mean = 41.8484
- Std.dev = 6.04281
- 24 items above graph maximum of 63
|
Notes
position of the notch
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. This is the time when when notch occurs in the waveform.
