Publication: Reliability and validity of the Thai version of the Pittsburgh Sleep Quality Index
Issued Date
2014-01-01
Resource Type
ISSN
01252208
Other identifier(s)
2-s2.0-84900001749
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of the Medical Association of Thailand. Vol.97, No.3 SUPPL. 3 (2014)
Suggested Citation
Tullaya Sitasuwan, Sontuss Bussaratid, Pimon Ruttanaumpawan, Wattanachai Chotinaiwattarakul Reliability and validity of the Thai version of the Pittsburgh Sleep Quality Index. Journal of the Medical Association of Thailand. Vol.97, No.3 SUPPL. 3 (2014). Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/34344
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Reliability and validity of the Thai version of the Pittsburgh Sleep Quality Index
Other Contributor(s)
Abstract
Objective: To assess the internal consistency, test-retest reliability, and validity of the Thai version of the Pittsburgh Sleep Quality Index (Thai-PSQI), which was recently translated using a standardized method, in Thai patients with major sleep disorders. Material and Method: The Thai-PSQI was developed under a standard translation protocol and administered to "bad" sleepers (i.e. patients with suspected obstructive sleep apnea [OSA], depression, or insomnia) and "good" sleepers in an academic tertiary care setting. All participants were asked to complete the same questionnaire after 2-4 weeks. Results: A total of 138 participants consisting of 69 patients with OSA, 28 with major depression, 11 with primary insomnia, and 30 controls completed the questionnaire. The global scores of the Thai-PSQI revealed that it had excellent internal consistency (Cronbach's alpha = 0.837) and test-retest reliability (intraclass correlation coefficient = 0.89). An analysis of covariance demonstrated a significant difference in Thai-PSQI global score between good sleepers and bad sleepers (p<0.001). A cut-off point of 5 out of 6 on the global score resulted in a sensitivity of 77.78% and specificity of 93.33%. Conclusion: The Thai-PSQI is a valid and reliable tool for screening and identifying the presence of significant sleep disturbances, and is comparable to the original English version.