245,757 items of data are available, covering 214,349 participants, encoded using Data-Coding 100349
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
172,682 participants, 172,682 items
Instance 1 : First repeat assessment visit (2012-13)
20,335 participants, 20,335 items
Instance 2 : Imaging visit (2014+)
48,639 participants, 48,639 items
Instance 3 : First repeat imaging visit (2019+)
4,101 participants, 4,101 items
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.
There are no tabulations involving field 4653.
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