Data
593,606 items of data are available, covering 502,371 participants, encoded using Data-Coding
8.
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
502,371 participants, 502,371 items
Instance 1 : First repeat assessment visit (2012-13)
20,343 participants, 20,343 items
Instance 2 : Imaging visit (2014+)
65,494 participants, 65,494 items
Instance 3 : First repeat imaging visit (2019+)
5,398 participants, 5,398 items
Notes
Calendar month that participant attended a UK Biobank assessment centre.
Automatically acquired at Reception stage.