Data
658,408 items of data are available, covering 498,751 participants, encoded using Data-Coding
100538.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 5.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
497,680 participants, 558,941 items
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 22,637 items
Instance 2 : Imaging visit (2014+)
64,924 participants, 70,959 items
Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 5,871 items
Notes
ACE touchscreen question "Do you have any of the following? (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:
Answer this question thinking about the past year.
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