Data
642,721 items of data are available, covering 500,773 participants.
Defined-instances run from 0 to 3, labelled using Instancing 
2.
Units of measurement are hours.
| Maximum | 72 |  
| Decile 9 | 6 |  
| Decile 8 | 5 |  
| Decile 7 | 4 |  
| Decile 6 | 4 |  
| Median | 3 |  
| Decile 4 | 3 |  
| Decile 3 | 3 |  
| Decile 2 | 2 |  
| Decile 1 | 2 |  
| Minimum | 0 |  
 
 | 
 
 | 
- There are 38 distinct values.
 
- Mean = 3.6643
 
- Std.dev = 2.41521
 
- 18552 items above graph maximum of 10
 
  | 
 
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
500,707 participants, 500,707 items
| Maximum | 72 |  
| Decile 9 | 6 |  
| Decile 8 | 5 |  
| Decile 7 | 4 |  
| Decile 6 | 4 |  
| Median | 3 |  
| Decile 4 | 3 |  
| Decile 3 | 3 |  
| Decile 2 | 2 |  
| Decile 1 | 2 |  
| Minimum | 0 |  
 
 | 
 
 | 
- There are 35 distinct values.
 
- Mean = 3.82721
 
- Std.dev = 2.46595
 
- 16430 items above graph maximum of 10
 
  | 
Instance 1 : First repeat assessment visit (2012-13)
20,314 participants, 20,314 items
| Maximum | 25 |  
| Decile 9 | 6 |  
| Decile 8 | 5 |  
| Decile 7 | 4 |  
| Decile 6 | 4 |  
| Median | 4 |  
| Decile 4 | 3 |  
| Decile 3 | 3 |  
| Decile 2 | 3 |  
| Decile 1 | 2 |  
| Minimum | 0 |  
 
 | 
 
 | 
- There are 24 distinct values.
 
- Mean = 4.0098
 
- Std.dev = 1.74534
 
- 297 items above graph maximum of 10
 
  | 
Instance 2 : Imaging visit (2014+)
100,738 participants, 100,738 items
| Maximum | 58 |  
| Decile 9 | 5 |  
| Decile 8 | 4 |  
| Decile 7 | 4 |  
| Decile 6 | 3 |  
| Median | 3 |  
| Decile 4 | 2 |  
| Decile 3 | 1 |  
| Decile 2 | 1 |  
| Decile 1 | 1 |  
| Minimum | 0 |  
 
 | 
 
 | 
- There are 32 distinct values.
 
- Mean = 2.91033
 
- Std.dev = 2.1584
 
- 1711 items above graph maximum of 9
 
  | 
Instance 3 : First repeat imaging visit (2019+)
20,962 participants, 20,962 items
| Maximum | 24 |  
| Decile 9 | 5 |  
| Decile 8 | 4 |  
| Decile 7 | 4 |  
| Decile 6 | 3 |  
| Median | 3 |  
| Decile 4 | 2 |  
| Decile 3 | 2 |  
| Decile 2 | 1 |  
| Decile 1 | 1 |  
| Minimum | 0 |  
 
 | 
 
 | 
- There are 22 distinct values.
 
- Mean = 3.06144
 
- Std.dev = 2.10209
 
- 336 items above graph maximum of 9
 
  |