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The PSQI is a self-rated questionnaire which assesses sleep quality and disturbances over a 1-month time interval. Nineteen individual items generate seven "component" scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction. The sum of scores for these seven components yields one global score. Scoring for each item ranges from 0 to 3
Year: 1989 Authors: Buysse et al. Disease: Obesity Outcome: Sleep Quality
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Measure: Sleep Quality
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Number of RCTs that used this tool (in our study): 3
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Scale: Lower scores are better Reference: Buysse, D. J., Reynolds III, C. F., Monk, T. H., Berman, S. R., & Kupfer, D. J. (1989). The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry research, 28(2), 193-213
Target population: General population Focus Generic Translations available: Yes Original version validated: Yes Original language: English Form of delivery: Self-reported Licence needed: Yes 10.1016/0165-1781(89)90047-4