: Data-Field 1220

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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.

Graph illustrating main data

Counts of participants/items last updated 30 Oct 2020.

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,522 participants, 501,522 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
51,131 participants, 51,131 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
5,267 participants, 5,267 items
Graph illustrating main data

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.

5 Categories

Category ID	Description	Items
100000	Assessment Centre	+3600
704	Lifestyle	461
100050	Lifestyle and environment	+155
100057	Sleep	7
100025	Touchscreen	+396

0 Related Data-Fields

There are no related data-fields

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 1220	100290
	Touchscreen questionnaire ordering, validation and dependencies	113241

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