TUESDAY, Oct. 12 (HealthDay News) -- Women who maintain certain "breast-healthy" habits can lower their risk of breast cancer, even if a close relative has had the disease, a new study finds.
Engaging in regular physical activity, maintaining a healthy weight and drinking alcohol in moderation, if at all, was shown in a large study to help protect against breast cancer in postmenopausal women, the researchers said.
"Whether or not you have a family history, the risk of breast cancer was lower for women engaged in these three sets of behavior compared to women who were not," said study leader Dr. Robert Gramling, associate professor of family medicine at the University of Rochester Medical Center in New York.
The study was published online Oct. 12 in the journal Breast Cancer Research.
Gramling wanted to look at the effects of lifestyle habits on breast cancer risk because he suspects some women with a family history may believe their risk is out of their control.
He analyzed data on U.S. women aged 50 to 79 from the Women's Health Initiative study starting in 1993. During 5.4 years of follow-up, 1,997 women were diagnosed with invasive breast cancer.
Gramling excluded women with a personal history of breast cancer or with a family history of early-onset cancer (diagnosed before age 45), then observed the impact of the healthy habits.
Excluding those with an early-onset family history makes sense, because a stronger genetic (versus environmental) component is thought to play a role in early-onset, experts say.
Following all three habits reduced the risk of breast cancer for women with and without a late-onset family history. "For women who had a family history and adhered to all these behaviors, about six of every 1,000 women got breast cancer over a year's time," he said.
In comparison, about seven of every 1,000 women developed b
All rights reserved