Data
525,200 items of data are available, covering 493,709 participants, encoded using Data-Coding
100349.
Defined-instances run from 0 to 2, labelled using Instancing
2.
3 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
493,686 participants, 493,686 items
Instance 1 : First repeat assessment visit (2012-13)
20,048 participants, 20,048 items
Instance 2 : Imaging visit (2014+)
11,466 participants, 11,466 items
Notes
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
This question was dropped from the touchscreen protocol on 24/10/2016.