Data
275,256 items of data are available, covering 231,287 participants, encoded using Data-Coding
100349.
Defined-instances run from 0 to 3, labelled using Instancing
2.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
172,644 participants, 172,644 items
Instance 1 : First repeat assessment visit (2012-13)
20,333 participants, 20,333 items
Instance 2 : Imaging visit (2014+)
75,333 participants, 75,333 items
Instance 3 : First repeat imaging visit (2019+)
6,946 participants, 6,946 items
Notes
ACE touchscreen question "Have you ever had a period of time lasting at least two days when you were so irritable that you found yourself shouting at people or starting fights or arguments?"
Question was introduced part way through fieldwork in April 2009.