Hormonal birth control linked to increased breast cancer risk, study says

Sebastien_B/iStock/Thinkstock(NEW YORK) — Women using hormonal birth control methods — from the pill, to the ring and implants — appeared to have a 20 percent higher risk of breast cancer, according to a new study of 1.8 million women in Denmark.

The study, which was published in the New England Journal of Medicine, included 1.8 million women over the course of nearly 11 years. Denmark has a nationwide registry, which enabled scientists to find data on the women.

The researchers addressed potential confounding factors that, on their own, could increase breast cancer risk such as smoking, family history, prior pregnancies, body-mass index …read more


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