: Data-Field 1200

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Data

624,061 items of data are available, covering 501,292 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
501,258 participants, 501,258 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
20,328 participants, 20,328 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
89,817 participants, 89,817 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
12,658 participants, 12,658 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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