315,711 items of data are available, covering 288,405 participants, encoded using Data-Coding 100301
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
287,118 participants, 287,118 items
Instance 1 : First repeat assessment visit (2012-13)
8,300 participants, 8,300 items
Instance 2 : Imaging visit (2014+)
18,526 participants, 18,526 items
Instance 3 : First repeat imaging visit (2019+)
1,767 participants, 1,767 items
ACE touchscreen question "Does your work involve shift work?"
If the participant activated the Help button they were shown the message:
|If you have more than one 'current job' then answer this question|
for your MAIN job only.
Shift work is a work schedule that falls outside of the normal daytime
working hours of 9am-5pm. This may involve working afternoons, evenings
or nights or rotating through these kinds of shifts.
Field 826 was collected from participants who indicated they were in paid employment or self-employed as defined by their answers to Field 6142