Data
4,531,240 items of data are available, covering 240,345 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 1 to 15.
Average length is 5.3 characters, longest is 200.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
166,165 participants, 2,459,584 items
Too few values for statistical summary.
Instance 1 : First repeat assessment visit (2012-13)
20,011 participants, 298,012 items
Too few values for statistical summary.
Instance 2 : Imaging visit (2014+)
98,811 participants, 1,466,780 items
Too few values for statistical summary.
Instance 3 : First repeat imaging visit (2019+)
20,574 participants, 306,864 items
Too few values for statistical summary.