: Data-Field 1200

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Data

643,197 items of data are available, covering 501,087 participants, encoded using Data-Coding 100343.
Defined-instances run from 0 to 3, labelled using Instancing 2.

Graph illustrating main data

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,046 participants, 501,046 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
20,314 participants, 20,314 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
100,917 participants, 100,917 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
20,920 participants, 20,920 items
Graph illustrating main data

Notes

ACE touchscreen question "Do you have trouble falling asleep at night or do you wake up in the middle of the night?"

If the participant activated the Help button they were shown the message:

If this varies a lot, answer this question in relation to the last 4 weeks.

0 Related Data-Fields

There are no related data-fields

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 1200	100288
	Touchscreen questionnaire ordering, validation and dependencies	113241

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