Data
3,952,653 items of data are available, covering 224,119 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 115.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
166,241 participants, 2,461,705 items
Too few values for statistical summary.
Instance 1 : First repeat assessment visit (2012-13)
20,022 participants, 298,143 items
Too few values for statistical summary.
Instance 2 : Imaging visit (2014+)
73,647 participants, 1,090,499 items
Too few values for statistical summary.
Instance 3 : First repeat imaging visit (2019+)
6,845 participants, 102,306 items
Too few values for statistical summary.