Physical activity, health-related quality of life, and adjuvant endocrine therapy-related symptoms in women with hormone receptor-positive breast cancer
CANCER(2020)
Abstract
Background Physical activity (PA) is recommended for women with breast cancer (BC); however, data are sparse on the association of PA with quality of life (QOL) and patient-reported symptoms for women on adjuvant endocrine therapy (AET). Methods Women with hormone receptor-positive BC who were taking AET completed standardized surveys about their health-related QOL, AET-related symptoms, and levels of PA using validated measures. A Wald chi-square test and an analysis of variance were used to assess associations with PA and independent variables. Generalized linear regression analyses assessed associations between PA, QOL, and AET-related symptoms. Results The analytic cohort included 485 Black and White women. Black race, a high body mass index (BMI), and being on aromatase inhibitors (vs tamoxifen) were associated with lower PA in a bivariate analysis. In a multivariate analysis, lower self-reported PA was associated with a high BMI (P = .02) and chemotherapy uptake (P = .006). Better health-related QOL (P = .01), less severe overall AET-related symptoms (P = .02), and less severe gynecological symptoms (P = .03) were associated with increasing levels of moderate PA. Conclusions Among women taking AET, moderate levels of PA may be associated with fewer medication-related symptoms and overall better ratings of health-related QOL. Because of the low levels of PA observed in the sample overall and particularly for Black women, identifying successful strategies to promote PA are needed.
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Key words
breast neoplasms,exercise,quality of life,therapeutics
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