Data
525,656 items of data are available, covering 494,132 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
494,109 participants, 494,109 items
Instance 1 : First repeat assessment visit (2012-13)
20,068 participants, 20,068 items
Instance 2 : Imaging visit (2014+)
11,479 participants, 11,479 items
Notes
ACE touchscreen question "Did your mother smoke regularly around the time when you were born?"
Field 1787 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.