Data
268,850 items of data are available, covering 227,981 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
172,645 participants, 172,645 items
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 items
Instance 2 : Imaging visit (2014+)
69,873 participants, 69,873 items
Instance 3 : First repeat imaging visit (2019+)
5,998 participants, 5,998 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.