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THURSDAY, Dec. 19, 2019 (HealthDay News) — For women aged \u226550 years, sustained weight loss is associated with a reduced breast cancer risk, according to a study published online Dec. 17 in the Journal of the National Cancer Institute<\/i>.<\/p>\n
Lauren R. Teras, Ph.D., from the American Cancer Society in Atlanta, and colleagues examined the associations between weight change during about 10 years and risk for breast cancer among women aged \u226550 years. During follow-up, 6,930 invasive breast cancers were identified among 180,885 women.<\/p>\n
The researchers found that women with sustained weight loss (\u22652 kg in interval 1 [median, 5.2 years] that was not regained in interval 2 [median, 4.0 years]) had a lower risk for breast cancer compared with women with stable weight (\u00b12 kg). The risk reduction was linear and was limited to women not using postmenopausal hormones (>2 to 4.5 kg lost: hazard ratio, 0.82; >4.5 to <9 kg lost: hazard ratio, 0.75; \u22659 kg lost: hazard ratio, 0.68). A lower risk for breast cancer was also seen for women who lost \u22659 kg and gained some (but not all) back.<\/p>\n
“We found that losing weight — and keeping it off — was associated with lower breast cancer risk for women aged 50 years and over,” the authors write. “This message is particularly important for the two-thirds of the U.S. population who are overweight\/obese, and therefore at higher risk of breast cancer.”<\/p>\n
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