Data
642,745 items of data are available, covering 500,788 participants, encoded using Data-Coding
7.
Defined-instances run from 0 to 3, labelled using Instancing
2.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
500,725 participants, 500,725 items
Instance 1 : First repeat assessment visit (2012-13)
20,314 participants, 20,314 items
Instance 2 : Imaging visit (2014+)
100,744 participants, 100,744 items
Instance 3 : First repeat imaging visit (2019+)
20,962 participants, 20,962 items
Notes
Indicates whether or not taking blood samples was attempted
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