Effects of pessimism, depression, fatigue, and pain on functional health-related quality of life in patients with resected non-advanced breast cancer
2019
Abstract Introduction The aim was to analyze the effects of pessimism, depression, fatigue, and pain on functional health-related quality of life (HRQoL) in patients with resected, non-advanced breast cancer. Methods A prospective, multicenter study was conducted in 440 breast cancer patients. They completed the Brief Symptom Inventory (BSI), the European Organization for Research and Treatment of Cancer QoL-Questionnaire-Core-30 (EORTC-QLQ-C30), and the Revised Life Orientation Test (LOT-R). Results Prevalence rates of pessimism and depression were 23.3% and 40.0%, respectively. Fatigue and pain were the most common symptoms, 8.8% and 4.2%, respectively. Patients without a partner were more pessimistic that partnered ones; those with a lower level of education and subjects without a partner exhibited more depression. Depression was a major factor that proved to have the greatest explanatory power for HRQoL (physical, role, emotional, cognitive, and social functioning) and global health status (R 2 range: 0.13 to 0.39). Of the five domains, fatigue had a significant effect on four and pain, on two. Conclusion This study reveals the impact of depression and pessimism on physical, psychological, social, and quality-of-life aspects and the importance of evaluating them in patients who are going to initiate adjuvant chemotherapy for breast cancer.
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