: Data-Field 30442

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Data

182,214 items of data are available, covering 182,214 participants.
Some values have special meanings defined by Data-Coding 100584.
Units of measurement are mins past midnight.

Maximum	1435
Decile 9	1395
Decile 8	1380
Decile 7	1380
Decile 6	1350
Median	1350
Decile 4	1320
Decile 3	1320
Decile 2	1260
Decile 1	30
Minimum	0

There are 227 distinct values.
Mean = 1141.1
Std.dev = 469.513
850 items have value -3 (Prefer not to answer)

Notes

Sleep online question: "During the past month, what time have you usually gone to bed at night?"

The question in this field was taken from the Pittsburgh Sleep Quality Index.
The Pittsburgh Sleep Quality Index: A New Instrument for Psychiatric Practice and Research (Authors Daniel J. Buysse, Charles F. Reynolds III, Timothy H. Monk, Susan R. Berman, and David J Kupfer, © University of Pittsburgh 1989 and 2010. All Rights Reserved)

Coding 100584 defines 1 special value:

-3 represents "Prefer not to answer"

0 Related Data-Fields

There are no related data-fields

1 Resource

Preview	Name	Res ID
	Online sleep questionnaire screenshot Quality1-Quality4	2284

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