Data
586,310 items of data are available, covering 496,922 participants, encoded using Data-Coding
100314.
Defined-instances run from 0 to 3, labelled using Instancing
2.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
495,811 participants, 495,811 items
Instance 1 : First repeat assessment visit (2012-13)
20,276 participants, 20,276 items
Instance 2 : Imaging visit (2014+)
64,863 participants, 64,863 items
Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 5,360 items
Notes
ACE touchscreen question "At home, during the last 4 weeks, about how many times a DAY do you climb a flight of stairs? (approx 10 steps)"
If the participant activated the Help button they were shown the message:
If you are unsure, please provide an estimate or select Do not know.
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Field 943 was collected from all participants except those who indicated they were unable to walk, as defined by their answers to Field 864