Data
643,157 items of data are available, covering 501,047 participants, encoded using Data-Coding
100603.
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
501,006 participants, 501,006 items
Instance 1 : First repeat assessment visit (2012-13)
20,314 participants, 20,314 items
Instance 2 : Imaging visit (2014+)
100,917 participants, 100,917 items
Instance 3 : First repeat imaging visit (2019+)
20,920 participants, 20,920 items
Notes
ACE touchscreen question "Has a doctor ever told you that you have had any other serious medical conditions or disabilities?"
If the participant activated the Help button they were shown the message:
If you are not sure if you have a serious illness or you are not sure that you have had one of the conditions listed previously, enter Do not know and you will be asked about this by an interviewer later in this visit.
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