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Physical activity and weight loss have been shown to reduce breast cancer incidence in numerous observational studies. The aim of this meta-analysis was to assess the effect of both physical activity and weight loss on breast cancer incidence. Specifically, we aimed to complete subgroup analyses by the intensity of physical activity and menopausal status at breast cancer diagnosis to further elucidate...
Objectives: The purpose of this study was to assess sociodemographic and behavioral factors in relation to menopausal status in a representative sample of the United States population. Methods: Data were taken from the 1999 National Health Interview Survey (NHIS), limited to women aged 40-54 years who had not undergone surgical menopause. Menopausal transition was defined as absence of menstrual cycles...
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