: Data-Field 30443

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Data

182,066 items of data are available, covering 182,066 participants.
Some values have special meanings defined by Data-Coding 100584.
Units of measurement are minutes.

Maximum	535
Decile 9	90
Decile 8	60
Decile 7	45
Decile 6	30
Median	30
Decile 4	20
Decile 3	15
Decile 2	15
Decile 1	10
Minimum	0

There are 105 distinct values.
Mean = 40.2332
Std.dev = 44.9031
3422 items above graph maximum of 170
2836 items have value -3 (Prefer not to answer)

Notes

Sleep online question: "During the past month, how long has it usually taken you to fall asleep each night?"

The question in this field was taken from the Pittsburgh Sleep Quality Index.

Buysse D J, Reynolds CF, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: A new instrument for psychiatric practice and research. Psychiatry Research 1989 May;28(2):193-213.

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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