Data
966,768 items of data are available, covering 501,056 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
501,015 participants, 774,203 items
Instance 1 : First repeat assessment visit (2012-13)
20,314 participants, 27,998 items
Instance 2 : Imaging visit (2014+)
100,917 participants, 136,420 items
Instance 3 : First repeat imaging visit (2019+)
20,920 participants, 28,147 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.