Validity and reliability of Sleep Quality Scale in subjects with obstructive sleep apnea syndrome
- Authors
- Yi, Hyeryeon; Shin, Kyungrim; Kim, Jinyoung; Kim, Jeongsun; Lee, JungBok; Shin, Chol
- Issue Date
- Jan-2009
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Reliability; Sleep Quality Scale; Validity
- Citation
- JOURNAL OF PSYCHOSOMATIC RESEARCH, v.66, no.1, pp 85 - 88
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF PSYCHOSOMATIC RESEARCH
- Volume
- 66
- Number
- 1
- Start Page
- 85
- End Page
- 88
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120843
- DOI
- 10.1016/j.jpsychores.2008.07.008
- ISSN
- 0022-3999
1879-1360
- Abstract
- Objective: The present study aimed to evaluate the validity and reliability of Sleep Quality Scale (SQS) in subjects with obstructive sleep apnea syndrome (OSAS). Methods: The known group technique was used for construct validity. The study sample was composed of 40 persons with OSAS and 37 normal subjects. OSAS was defined as an apnea-hypopnea index (AHI) of >= 5 plus an Epworth Sleepiness Scale (ESS) score of > 10. Control group was composed of subjects who had no history of depression and sleep problems as identified by self-report and polysomnography. A Cronbach's alpha coefficient was used for internal consistency. Results: The total SQS score of the OSAS subjects was significantly higher than that of the normal Subjects. The SQS score homogeneity was high with a Cronbach's alpha coefficient of 0.90 in all subjects, 0.87 in the OSAS subjects, and 0.70 in the normal subjects. Conclusion: SQS was confirmed to be an instrument with validity and high reliability for measuring sleep quality in OSAS subjects. (c) 2009 Elsevier Inc. All rights reserved.
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