Data
87,996 items of data are available, covering 83,313 participants.
Defined-instances run from 2 to 3, labelled using Instancing 
2.
Units of measurement are AU.
| 
| Maximum | 37.7634 |  | Decile 9 | 31.3201 |  | Decile 8 | 30.5185 |  | Decile 7 | 29.9151 |  | Decile 6 | 29.3797 |  | Median | 28.8633 |  | Decile 4 | 28.3307 |  | Decile 3 | 27.7401 |  | Decile 2 | 27.0029 |  | Decile 1 | 25.9378 |  | Minimum | 17.4705 |  |   | 
Mean = 28.7252Std.dev = 2.1224670 items below graph minimum of 20.55541 item above graph maximum of 36.7025 | 
2 Instances
Instance 2 : Imaging visit (2014+)
83,241 participants, 83,241 items
| 
| Maximum | 37.7634 |  | Decile 9 | 31.313 |  | Decile 8 | 30.5093 |  | Decile 7 | 29.903 |  | Decile 6 | 29.3672 |  | Median | 28.8509 |  | Decile 4 | 28.3137 |  | Decile 3 | 27.7207 |  | Decile 2 | 26.9828 |  | Decile 1 | 25.9164 |  | Minimum | 17.4705 |  |   | 
Mean = 28.7113Std.dev = 2.1269862 items below graph minimum of 20.51981 item above graph maximum of 36.7095 | 
Instance 3 : First repeat imaging visit (2019+)
4,755 participants, 4,755 items
| 
| Maximum | 34.7955 |  | Decile 9 | 31.4326 |  | Decile 8 | 30.6754 |  | Decile 7 | 30.1218 |  | Decile 6 | 29.5991 |  | Median | 29.0988 |  | Decile 4 | 28.603 |  | Decile 3 | 28.0701 |  | Decile 2 | 27.373 |  | Decile 1 | 26.2981 |  | Minimum | 17.8579 |  |   | 
Mean = 28.9685Std.dev = 2.026324 items below graph minimum of 21.1636 | 
Notes
Grey-white contrast in lateralorbitofrontal in the left hemisphere calculated as a percentage of the mean gray-white matter intensity from Desikan-Killiany parcellation
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