Data
624,749 items of data are available, covering 501,109 participants.
Defined-instances run from 0 to 3, labelled using Instancing 
2.
| 
| Maximum | 48 |  | Decile 9 | 6 |  | Decile 8 | 4 |  | Decile 7 | 3 |  | Decile 6 | 2 |  | Median | 2 |  | Decile 4 | 1 |  | Decile 3 | 1 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 33 distinct values.Mean = 2.42068Std.dev = 2.63033922 items above graph maximum of 12 | 
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,076 participants, 501,076 items
| 
| Maximum | 48 |  | Decile 9 | 6 |  | Decile 8 | 4 |  | Decile 7 | 3 |  | Decile 6 | 2 |  | Median | 2 |  | Decile 4 | 1 |  | Decile 3 | 1 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 33 distinct values.Mean = 2.4603Std.dev = 2.681293451 items above graph maximum of 12 | 
Instance 1 : First repeat assessment visit (2012-13)
20,313 participants, 20,313 items
| 
| Maximum | 28 |  | Decile 9 | 6 |  | Decile 8 | 5 |  | Decile 7 | 4 |  | Decile 6 | 3 |  | Median | 2 |  | Decile 4 | 1 |  | Decile 3 | 1 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 25 distinct values.Mean = 2.73687Std.dev = 2.71582143 items above graph maximum of 12 | 
Instance 2 : Imaging visit (2014+)
89,066 participants, 89,066 items
| 
| Maximum | 30 |  | Decile 9 | 5 |  | Decile 8 | 4 |  | Decile 7 | 3 |  | Decile 6 | 2 |  | Median | 2 |  | Decile 4 | 1 |  | Decile 3 | 1 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 28 distinct values.Mean = 2.14955Std.dev = 2.3244720 items above graph maximum of 10 | 
Instance 3 : First repeat imaging visit (2019+)
14,294 participants, 14,294 items
| 
| Maximum | 21 |  | Decile 9 | 5 |  | Decile 8 | 4 |  | Decile 7 | 3 |  | Decile 6 | 2 |  | Median | 2 |  | Decile 4 | 1 |  | Decile 3 | 1 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 20 distinct values.Mean = 2.272Std.dev = 2.35398107 items above graph maximum of 10 |