Data
928,310 items of data are available, covering 501,275 participants, encoded using Data-Coding
100553.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 6.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,243 participants, 774,531 items
Instance 1 : First repeat assessment visit (2012-13)
20,328 participants, 28,016 items
Instance 2 : Imaging visit (2014+)
84,020 participants, 113,943 items
Instance 3 : First repeat imaging visit (2019+)
8,804 participants, 11,820 items
Notes
ACE touchscreen question "In the last month have you experienced any of the following that interfered with your usual activites? (You can select more than one answer)"
The following checks were performed:
- If code 8 was selected, then no additional choices were allowed.
- If code -7 was selected, then no additional choices were allowed.
- If code -3 was selected, then no additional choices were allowed.