628,437 items of data are available, covering 501,607 participants, encoded using Data-Coding 100295
Defined-instances run from 0 to 3, labelled using Instancing 2
Array indices run from 0 to 6.
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,590 participants, 547,838 items
Instance 1 : First repeat assessment visit (2012-13)
20,335 participants, 22,461 items
Instance 2 : Imaging visit (2014+)
48,639 participants, 53,306 items
Instance 3 : First repeat imaging visit (2019+)
4,475 participants, 4,832 items
ACE touchscreen question "Which of the following describes your current situation? (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:
|If more than one situation applies, select all that are appropriate.|