Data
47,408 items of data are available, covering 42,923 participants.
Defined-instances run from 2 to 3, labelled using Instancing
2.
Units of measurement are mm3.
| Maximum | 134728 |
| Decile 9 | 26497.5 |
| Decile 8 | 25121.5 |
| Decile 7 | 24196 |
| Decile 6 | 23411.5 |
| Median | 22708 |
| Decile 4 | 22028 |
| Decile 3 | 21326 |
| Decile 2 | 20528 |
| Decile 1 | 19406 |
| Minimum | 9133 |
|
|
- Mean = 22854.8
- Std.dev = 2859
- 9 items below graph minimum of 12314.5
- 63 items above graph maximum of 33589
|
2 Instances
Instance 2 : Imaging visit (2014+)
42,786 participants, 42,786 items
| Maximum | 134728 |
| Decile 9 | 26512 |
| Decile 8 | 25121.5 |
| Decile 7 | 24194 |
| Decile 6 | 23413 |
| Median | 22705 |
| Decile 4 | 22025 |
| Decile 3 | 21326 |
| Decile 2 | 20530 |
| Decile 1 | 19406 |
| Minimum | 9133 |
|
|
- Mean = 22857.5
- Std.dev = 2867.94
- 7 items below graph minimum of 12300
- 62 items above graph maximum of 33618
|
Instance 3 : First repeat imaging visit (2019+)
4,622 participants, 4,622 items
| Maximum | 33317 |
| Decile 9 | 26367 |
| Decile 8 | 25121.5 |
| Decile 7 | 24209.5 |
| Decile 6 | 23404 |
| Median | 22739 |
| Decile 4 | 22052.5 |
| Decile 3 | 21334 |
| Decile 2 | 20515 |
| Decile 1 | 19406.5 |
| Minimum | 11376 |
|
|
- Mean = 22829.2
- Std.dev = 2774.8
- 2 items below graph minimum of 12446
|
Notes
Volume of brain stem + 4th ventricle (from T1 brain image)
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