Data
3,949,885 items of data are available, covering 223,728 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 1 to 15.
Average length is 3.0 characters, longest is 3.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
166,066 participants, 2,459,579 items
Too few values for statistical summary.
Instance 1 : First repeat assessment visit (2012-13)
19,961 participants, 298,079 items
Too few values for statistical summary.
Instance 2 : Imaging visit (2014+)
73,082 participants, 1,089,922 items
Too few values for statistical summary.
Instance 3 : First repeat imaging visit (2019+)
6,844 participants, 102,305 items
Too few values for statistical summary.