315,042 items of data are available, covering 288,419 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
287,138 participants, 287,138 items
Instance 1 : First repeat assessment visit (2012-13)
8,300 participants, 8,300 items
Instance 2 : Imaging visit (2014+)
18,527 participants, 18,527 items
Instance 3 : First repeat imaging visit (2019+)
1,077 participants, 1,077 items
ACE touchscreen question "Does your work involve heavy manual or physical 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.
Physical work includes work that involves handling of heavy objects and use
of heavy tools.
Field 816 was collected from participants who indicated they were in paid employment or self-employed as defined by their answers to Field 6142
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