Data
624,749 items of data are available, covering 501,109 participants.
Defined-instances run from 0 to 3, labelled using Instancing 
2.
| 
| Maximum | 6 |  | Decile 9 | 0 |  | Decile 8 | 0 |  | Decile 7 | 0 |  | Decile 6 | 0 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 7 distinct values.Mean = 0.103718Std.dev = 0.331924328 items above graph maximum of 1 | 
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,076 participants, 501,076 items
| 
| Maximum | 6 |  | Decile 9 | 0 |  | Decile 8 | 0 |  | Decile 7 | 0 |  | Decile 6 | 0 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 7 distinct values.Mean = 0.0893138Std.dev = 0.3085892772 items above graph maximum of 1 | 
Instance 1 : First repeat assessment visit (2012-13)
20,313 participants, 20,313 items
| 
| Maximum | 4 |  | Decile 9 | 1 |  | Decile 8 | 0 |  | Decile 7 | 0 |  | Decile 6 | 0 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 5 distinct values.Mean = 0.119628Std.dev = 0.34908213 items above graph maximum of 2 | 
Instance 2 : Imaging visit (2014+)
89,066 participants, 89,066 items
| 
| Maximum | 6 |  | Decile 9 | 1 |  | Decile 8 | 0 |  | Decile 7 | 0 |  | Decile 6 | 0 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 7 distinct values.Mean = 0.169818Std.dev = 0.418141111 items above graph maximum of 2 | 
Instance 3 : First repeat imaging visit (2019+)
14,294 participants, 14,294 items
| 
| Maximum | 4 |  | Decile 9 | 1 |  | Decile 8 | 0 |  | Decile 7 | 0 |  | Decile 6 | 0 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 5 distinct values.Mean = 0.174199Std.dev = 0.41789515 items above graph maximum of 2 |