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Conference Paper: Psychometric properties of Pittsburgh Sleep Disturbance Index in Chinese breast cancer patients
Title | Psychometric properties of Pittsburgh Sleep Disturbance Index in Chinese breast cancer patients |
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Authors | |
Issue Date | 2014 |
Publisher | Society of Behavioral Medicine. |
Citation | The 35th Annual Meeting and Scientific Sessions of the Society of Behavioral Medicine (SBM 2014), Philadelphia, PA., 23-26 April 2014. How to Cite? |
Abstract | Background: The Pittsburgh Sleep Disturbance Index (PSQI) is an instrument used to measure the quality and patterns of sleep. This study aimed to evaluate the psychometric properties of the PSQI in Chinese breast cancer patients. Methods: Participants were 197 Chinese breast cancer patients (mean age = 49.4 years, SD = 7.9). They filled in the PSQI and self-reported measures on perceived stress, anxiety, depression, fatigue, pain, and quality of life. The PSQI assesses seven components of sleep: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction over the last month. Each component is scored on a 0 to 3 Likert scale, with higher scores denoting poorer sleep. The one-factor structure of the PSQI was evaluated via robust maximum likelihood confirmatory factor analysis using Mplus 7.11. Reliability and construct validity of the scale were assessed. Results: The revised one-factor model provided a good fit to the data (χ2(13) = 21.44, p > .05, CFI = .978, TLI = .965, RMSEA = .057, SRMR = .042). Factor loadings were statistically significant and ranged from .36 to .84. The global PSQI factor score had a satisfactory reliability coefficient (α = .79) and was significantly and negatively correlated with perceived stress, anxiety, depression, fatigue, pain severity, and pain interference (r = .29 - .51, p < .01) and negatively correlated with quality of life (r = -.56, p < .01). Conclusion: The results demonstrated satisfactory psychometric properties for the one-factor structure of the Chinese PSQI in terms of factorial validity, reliability, and construct validity in the breast cancer patients. Acknowledgement: This study was supported by the Research Grants Council General Research Fund (HKU745110H). |
Description | Meeting Theme: Behavior Matters: The Impact and Reach of Behavioral Medicine |
Persistent Identifier | http://hdl.handle.net/10722/197778 |
DC Field | Value | Language |
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dc.contributor.author | Ho, RTH | en_US |
dc.contributor.author | Fong, TCT | en_US |
dc.date.accessioned | 2014-05-29T08:52:20Z | - |
dc.date.available | 2014-05-29T08:52:20Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.citation | The 35th Annual Meeting and Scientific Sessions of the Society of Behavioral Medicine (SBM 2014), Philadelphia, PA., 23-26 April 2014. | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/197778 | - |
dc.description | Meeting Theme: Behavior Matters: The Impact and Reach of Behavioral Medicine | - |
dc.description.abstract | Background: The Pittsburgh Sleep Disturbance Index (PSQI) is an instrument used to measure the quality and patterns of sleep. This study aimed to evaluate the psychometric properties of the PSQI in Chinese breast cancer patients. Methods: Participants were 197 Chinese breast cancer patients (mean age = 49.4 years, SD = 7.9). They filled in the PSQI and self-reported measures on perceived stress, anxiety, depression, fatigue, pain, and quality of life. The PSQI assesses seven components of sleep: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction over the last month. Each component is scored on a 0 to 3 Likert scale, with higher scores denoting poorer sleep. The one-factor structure of the PSQI was evaluated via robust maximum likelihood confirmatory factor analysis using Mplus 7.11. Reliability and construct validity of the scale were assessed. Results: The revised one-factor model provided a good fit to the data (χ2(13) = 21.44, p > .05, CFI = .978, TLI = .965, RMSEA = .057, SRMR = .042). Factor loadings were statistically significant and ranged from .36 to .84. The global PSQI factor score had a satisfactory reliability coefficient (α = .79) and was significantly and negatively correlated with perceived stress, anxiety, depression, fatigue, pain severity, and pain interference (r = .29 - .51, p < .01) and negatively correlated with quality of life (r = -.56, p < .01). Conclusion: The results demonstrated satisfactory psychometric properties for the one-factor structure of the Chinese PSQI in terms of factorial validity, reliability, and construct validity in the breast cancer patients. Acknowledgement: This study was supported by the Research Grants Council General Research Fund (HKU745110H). | en_US |
dc.language | eng | en_US |
dc.publisher | Society of Behavioral Medicine. | en_US |
dc.relation.ispartof | Annual Meeting and Scientific Sessions of the Society of Behavioral Medicine, SBM 2014 | en_US |
dc.title | Psychometric properties of Pittsburgh Sleep Disturbance Index in Chinese breast cancer patients | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Ho, RTH: tinho@hku.hk | en_US |
dc.identifier.email | Fong, TCT: ttaatt@hku.hk | en_US |
dc.identifier.authority | Ho, RTH=rp00497 | en_US |
dc.identifier.hkuros | 228843 | en_US |
dc.publisher.place | United States | en_US |