Data
624,042 items of data are available, covering 501,273 participants, encoded using Data-Coding
100484.
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
501,239 participants, 501,239 items
Instance 1 : First repeat assessment visit (2012-13)
20,328 participants, 20,328 items
Instance 2 : Imaging visit (2014+)
89,817 participants, 89,817 items
Instance 3 : First repeat imaging visit (2019+)
12,658 participants, 12,658 items
Notes
ACE touchscreen question "Over the past two weeks, how often have you felt tired or had little energy?"
If the participant activated the Help button they were shown the message:
Answer this question thinking about the past 2 weeks. If you are unsure, please provide an estimate or select Do not know.
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