Andreas Hinz, Michael Friedrich, Thomas Schulte, Mareike Ernst, Ana N Tibubos, Katja Petrowski, Nadja Dornhöfer
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Sleep Problems and Quality of Life in Breast Cancer Patients.
Background: Sleep problems are frequently observed in breast cancer patients. However, the relationship between sleep quality and overall quality of life (QoL) and the specificity of different sleep-related questionnaires have not yet been adequately studied in breast cancer patients.
Methods: The sample of this cross-sectional study consisted of 533 breast cancer patients, recruited in a German rehabilitation clinic, with a mean age of 52.3 years (SD = 12.5 years). The following three sleep-related questionnaires were used: the Pittsburgh Sleep Quality Index (PSQI), the Insomnia Severity Index (ISI), and the Jenkins Sleep Scale (JSS). In addition, we used the QoL instrument EORTC QLQ-C30.
Results: Sleep quality was poor in this sample of breast cancer patients. The effect sizes d, indicating the difference in sleep quality between the patient sample and the general population, were between 0.97 and 1.76 (p < 0.001). QoL was impaired in all components (p < 0.001); the impairment in the dimension of sleep quality (d = 1.70) was among the highest. Sleep quality was correlated with all components of QoL. The comparison of the three sleep-related questionnaires showed that the results obtained in oncological studies partly depend on the instrument used.
Conclusion: As the burden of sleep problems is high, screening for sleep problems in breast cancer patients is important.
期刊介绍：
Current Oncology is a peer-reviewed, Canadian-based and internationally respected journal. Current Oncology represents a multidisciplinary medium encompassing health care workers in the field of cancer therapy in Canada to report upon and to review progress in the management of this disease.
We encourage submissions from all fields of cancer medicine, including radiation oncology, surgical oncology, medical oncology, pediatric oncology, pathology, and cancer rehabilitation and survivorship. Articles published in the journal typically contain information that is relevant directly to clinical oncology practice, and have clear potential for application to the current or future practice of cancer medicine.
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