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Validity and reliability of the Taiwanese version of the Pittsburgh Sleep Quality Index in cancer patients
- Source :
-
International Journal of Nursing Studies . Jan2012, Vol. 49 Issue 1, p102-108. 7p. - Publication Year :
- 2012
-
Abstract
- Abstract: Background: Sleep disturbance remains a common symptom among cancer patients. Assessment of sleep disturbance in cancer patients is hindered by infrequent use of standardized tools for sleep management. Objectives: The purposes of this study were to validate the Taiwanese version of the Pittsburgh Sleep Quality Index (PSQI-T) and to determine detection cut-off points in cancer patients. Design: A cross-sectional and descriptive correlational design. Participants: A sample of 205 Taiwanese patients with various cancer diagnoses. Methods: The survey included the Pittsburgh Sleep Quality Index-Taiwanese version, the MD Anderson Symptom Inventory-Taiwanese version, the Brief Fatigue Inventory-Taiwanese version, the seven-day sleep log, and Manual of Mental Disorders, Fourth Edition. Results: The internal consistency Cronbach''s alpha for the PSQI was 0.79. Test–retest reliability was 0.91 for the global score over a 20- to 28-day interval in a sample of 16 patients. Construct validity was established by a significant relationship of the PSQI-T global score to the total symptom severity score and the fatigue severity score. Convergent validity was examined by correlating the PSQI-T scores and scores of the DSM-IV and scores on the seven-day sleep log. Known-group validity was established by comparing PSQI-T scores for patients having low fatigue levels and those having high fatigue levels. Receiver-operating characteristic (ROC) curves were used to determine the detection cut-off points. Conclusions: We found that a PSQI-T global score of 8 generates the best sensitivity and specificity for measuring sleep disturbance in cancer patients. The PSQI-T is a reliable, valid, and sensitive instrument for measuring sleep quality among Taiwanese cancer patients. [Copyright &y& Elsevier]
- Subjects :
- *SLEEP
*CANCER patients
*STATISTICAL correlation
*RESEARCH methodology
*CLASSIFICATION of mental disorders
*QUESTIONNAIRES
*RESEARCH funding
*STATISTICAL sampling
*SCALES (Weighing instruments)
*T-test (Statistics)
*MULTITRAIT multimethod techniques
*CROSS-sectional method
*RECEIVER operating characteristic curves
*RESEARCH methodology evaluation
*DESCRIPTIVE statistics
RESEARCH evaluation
Subjects
Details
- Language :
- English
- ISSN :
- 00207489
- Volume :
- 49
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- International Journal of Nursing Studies
- Publication Type :
- Academic Journal
- Accession number :
- 70390311
- Full Text :
- https://doi.org/10.1016/j.ijnurstu.2011.08.004