Data
578,254 items of data are available, covering 501,540 participants, encoded using Data-Coding
100346.
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
501,522 participants, 501,522 items
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 items
Instance 2 : Imaging visit (2014+)
51,131 participants, 51,131 items
Instance 3 : First repeat imaging visit (2019+)
5,267 participants, 5,267 items
Notes
ACE touchscreen question "How likely are you to doze off or fall asleep during the daytime when you don't mean to? (e.g. when working, reading or driving)"
If the participant activated the Help button they were shown the message:
If you are unsure, please provide an estimate or select Do not know.
|
The option "All of the time" was removed during the Initial Assessment phase.