Data
3,951,352 items of data are available, covering 223,829 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
166,120 participants, 2,459,280 items
Too few values for statistical summary.
Instance 1 : First repeat assessment visit (2012-13)
19,971 participants, 298,235 items
Too few values for statistical summary.
Instance 2 : Imaging visit (2014+)
73,175 participants, 1,091,493 items
Too few values for statistical summary.
Instance 3 : First repeat imaging visit (2019+)
6,857 participants, 102,344 items
Too few values for statistical summary.