Data
972,868 items of data are available, covering 496,921 participants, encoded using Data-Coding
100299.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 3.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
495,810 participants, 816,517 items
Instance 1 : First repeat assessment visit (2012-13)
20,276 participants, 34,196 items
Instance 2 : Imaging visit (2014+)
64,863 participants, 112,946 items
Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 9,209 items
Notes
ACE touchscreen question "In the last 4 weeks, which forms of transport have you used most often to get about? (Not including any journeys to and from work; you can select more than one answer)"
The following checks were performed:
- If code -7 was selected, then no additional choices were allowed.
- If code -3 was selected, then no additional choices were allowed.
If the participant activated the Help button they were shown the message:
Remember not to include journeys to and from work.
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Field 6162 was collected from all participants except those who indicated they were unable to walk, as defined by their answers to Field 864