期刊
CANCER
卷 123, 期 14, 页码 2773-2780出版社
WILEY
DOI: 10.1002/cncr.30641
关键词
breast cancer; health behavior; physical activity; quality of life; survivorship
类别
资金
- National Cancer Institute [R25 CA122061]
- Department of Defense [DAMD17-01-1-0447]
BACKGROUND: Breast cancer survivors face a risk of disease recurrence and a higher risk of developing comorbidities such as cardiovascular disease when compared with the general population. Physical activity (PA) has been shown to reduce such risks. The current analyses sought to identify: 1) unique patterns of PA among breast cancer survivors; and 2) characteristics associated with the level of PA. METHODS: A total of 548 women reported PA and sociodemographic, health-related, and psychosocial factors at 3 time points, 6 months apart, after primary treatment of breast cancer. Cancer-related factors were obtained from chart reviews. Finite mixture modeling was used to examine trajectory groups of moderate-intensity to vigorous-intensity PA (MVPA) in the early post-treatment period. The authors then examined the characteristics associated with trajectory group membership. RESULTS: Three groups with distinct, stable patterns of PA were identified: the low MVPA (42.5% of patients), medium MVPA (45.5% of patients), and high MVPA (12.0% of patients) groups. In a multivariable setting, compared with more active breast cancer survivors, the least active group was found to have a higher body mass index, were less likely to report alcohol consumption, were more likely to smoke cigarettes, and had worse physical functioning and vitality scores. Cancer treatment-related factors did not significantly predict group membership. CONCLUSIONS: A large percentage of breast cancer survivors remain physically inactive after treatment, suggesting the need for interventions to reduce morbidity and mortality in this population. (C) 2017 American Cancer Society.
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