Data
582,303 items of data are available, covering 502,412 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
502,412 participants, 502,412 items
Instance 1 : First repeat assessment visit (2012-13)
20,343 participants, 20,343 items
Instance 2 : Imaging visit (2014+)
54,243 participants, 54,243 items
Instance 3 : First repeat imaging visit (2019+)
5,305 participants, 5,305 items
Notes
Calendar month that participant attended a UK Biobank assessment centre.
Automatically acquired at Reception stage.