525,818 items of data are available, covering 494,288 participants, encoded using Data-Coding 100349
Defined-instances run from 0 to 2, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
494,265 participants, 494,265 items
Instance 1 : First repeat assessment visit (2012-13)
20,070 participants, 20,070 items
Instance 2 : Imaging visit (2014+)
11,483 participants, 11,483 items
ACE touchscreen question "Are you a twin, triplet or other multiple birth?"
Field 1777 was collected from all participants except those who indicated they were adopted as a child, as defined by their answers to Field 1767
There are no tabulations involving field 1777.
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