574,036 items of data are available, covering 501,610 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
501,593 participants, 501,593 items
Instance 1 : First repeat assessment visit (2012-13)
20,335 participants, 20,335 items
Instance 2 : Imaging visit (2014+)
48,640 participants, 48,640 items
Instance 3 : First repeat imaging visit (2019+)
3,468 participants, 3,468 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.