Women who stop hormones therapy increase hip-fracture risk

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LA Times

November 04, 2011|By Shari Roan, Los Angeles Times / For the Booster Shots blog

A significant rise in hip fractures among women is one result of the decade-long slide in the popularity of hormone replacement therapy, researchers report in a new study.

The landmark Women's Health Initiative study showed unequivocally that hormone therapy helps strengthen women's bones and prevents fractures of hip, wrist and spine by 27% to 35%. However, hormone use fell out of favor after studies in 2002 showed it raised the risk of breast cancer and did not lower heart-disease risk and, in fact, may elevate the risk in some women. An estimated 93% of U.S. women quit using hormones and most stopped asking their doctors for new prescriptions.

While hormone therapy is clearly a trade-off, the benefits to bone health from taking hormones may have been lost on doctors and women over the last decade, said the authors of the new study, from the University of Southern California.

They looked at more than 80,000 women enrolled in Southern California Kaiser Permanente HMO plans and found that women who discontinued hormone therapy were at 55% greater risk of hip fracture compared with women who kept taking the medication. Hip fracture risk increased as early as two years after stopping hormones and the risk rose the longer women were off hormones.

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