Data
182,220 items of data are available, covering 182,220 participants.
Some values have special meanings defined by Data-Coding
100584.
Units of measurement are minutes.
Maximum | 1255 |
Decile 9 | 495 |
Decile 8 | 480 |
Decile 7 | 450 |
Decile 6 | 430 |
Median | 420 |
Decile 4 | 405 |
Decile 3 | 390 |
Decile 2 | 360 |
Decile 1 | 330 |
Minimum | 0 |
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- There are 160 distinct values.
- Mean = 415.486
- Std.dev = 70.3673
- 245 items below graph minimum of 165
- 168 items above graph maximum of 660
- 1535 items have value -3 (Prefer not to answer)
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Notes
Sleep online question: "During the past month, how many hours of actual sleep did you get each night? (This may be different to the number of hours you spent in bed.)"
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"