JAMA oncology
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Randomized Controlled Trial Multicenter Study
Overweight, Obesity, and Postmenopausal Invasive Breast Cancer Risk: A Secondary Analysis of the Women's Health Initiative Randomized Clinical Trials.
More than two-thirds of US women are overweight or obese, placing them at increased risk for postmenopausal breast cancer. ⋯ Obesity is associated with increased invasive breast cancer risk in postmenopausal women. These clinically meaningful findings should motivate programs for obesity prevention.