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Menopausal symptoms in women undergoing chemotherapy-induced and natural menopause: a prospective controlled study
Institution:1. Division of Medical Oncology and Hematology, Princess Margaret Hospital and University of Toronto, Toronto, Ontario, Canada;2. Department of Medical Oncology, Princess Alexandra Hospital, Brisbane, Queensland, Australia;3. Department of Medical Oncology, Institut Bergonié, Bordeaux, France;4. Department of Biostatistics, Canadian Blood Services, Ottawa, Ontario, Canada;5. Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
Abstract:Background: Women with breast cancer frequently undergo menopause following adjuvant chemotherapy. Here, we investigated whether they have more severe symptoms than women undergoing natural menopause.Patients and methods: Forty-one women who had undergone menopause as a result of chemotherapy and 57 healthy women who had undergone recent natural menopause were evaluated on two occasions 1 year apart. The primary end point was the summed score of the self-report Functional Assessment of Cancer Therapy, endocrine symptoms (FACT-ES) scale. Quality of life was evaluated by the FACT-G questionnaire and fatigue by the FACT-F subscale.Results: There was a strong trend for patients to report worse FACT-ES scores than controls at the first (P = 0.05) and second (P = 0.04) time points. More patients had moderate/severe hot flashes than controls undergoing natural menopause (51% versus 19%, P = 0.003). Patients reported worse fatigue than controls at the first assessment (P = 0.04), with no difference at the second. Menopausal symptoms were associated with fatigue for both groups. There was no difference between patients and controls in the quality-of-life scale, although assessment of patients is likely subject to adaptation and response-shift bias.Conclusions: Women undergoing chemotherapy-induced menopause may experience worse symptoms than women undergoing natural menopause.
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