321,009 items of data are available, covering 288,618 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
287,050 participants, 287,050 items
Instance 1 : First repeat assessment visit (2012-13)
8,299 participants, 8,299 items
Instance 2 : Imaging visit (2014+)
23,527 participants, 23,527 items
Instance 3 : First repeat imaging visit (2019+)
2,133 participants, 2,133 items
ACE touchscreen question "Does your work involve walking or standing for most of the time?"
If the participant activated the Help button they were shown the message:
|If you have more than one 'current job' then answer|
this question your MAIN job only.
Field 806 was collected from the participants who indicated they were in paid employment or self-employed as defined by their answers to Field 6142