565,657 items of data are available, covering 501,649 participants, encoded using Data-Coding 100343
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,633 participants, 501,633 items
Instance 1 : First repeat assessment visit (2012-13)
20,337 participants, 20,337 items
Instance 2 : Imaging visit (2014+)
42,861 participants, 42,861 items
Instance 3 : First repeat imaging visit (2018+)
826 participants, 826 items
ACE touchscreen question "Do you have trouble falling asleep at night or do you wake up in the middle of the night?"
If the participant activated the Help button they were shown the message:
|If this varies a lot, answer this question in relation to the last 4 weeks.|
There are no tabulations involving field 1200.
Registered researchers may, when logged in, request that new analyses be generated and displayed here.