NIH Common Data Elements (CDE) Repository

General Details:

Name:: Pittsburgh Sleep Quality Index (PSQI) - Fall asleep past month minute scale
Steward:: NINDS
Definition:: The scaled duration of time (in minutes) it takes the subject to fall asleep the majority of the nights in the past month, as part of the Pittsburgh Sleep Quality Index (PSQI).
Registration Status:: Qualified

Value	Code Name	Code Description
1	Greater than 15 and less than or equal to 30	Greater than 15 and less than or equal to 30
2	Greater than 30 and less than or equal to 60	Greater than 30 and less than or equal to 60
0	Greater than or equal to 0 and less than or equal to 15	Greater than or equal to 0 and less than or equal to 15
3	Greater than 60	Greater than 60

Designation:: Pittsburgh Sleep Quality Index (PSQI) - Fall asleep past month minute scale
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Definition:: The scaled duration of time (in minutes) it takes the subject to fall asleep the majority of the nights in the past month, as part of the Pittsburgh Sleep Quality Index (PSQI).
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Document:: Copyright 1989, University of Pittsburgh. All rights reserved. Developed by Buysse,D.J., Reynolds,C.F., Monk,T.H., Berman,S.R., and Kupfer,D.J. of the University of Pittsburgh using National Institute of Mental Health Funding. Buysse DJ, Reynolds CF, Monk TH, Berman SR, Kupfer DJ: Psychiatry Research, 28:193-213, 1989. Buysse,D.J., Reynolds,C.F., Monk,T.H., Berman,S.R., & Kupfer,D.J. (1989). The Pittsburgh Sleep Quality Index (PSQI): A new instrument for psychiatric research and practice. Psychiatry Research, 28(2), 193-213. The detailed scoring instructions are at the end of this journal article. http://www.sleep.pitt.edu/content.asp?id=1484&subid=2316. caBIG - https://cdebrowser.nci.nih.gov/CDEBrowser/