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Hormone replacement therapy - reviewing the evidence.(Brief Article)

Women's Health Weekly

| October 17, 2002 | COPYRIGHT 2002 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2002 OCT 17 - (NewsRx.com & NewsRx.net) -- A rapid-review article in the September 21, 2002, issue of the Lancet weighs up the current evidence for the health outcomes of hormone replacement therapy (HRT) use.

The review - which includes data from the recently published Womens Health Initiative (WHI) study - provides consistent evidence to refute the widely held view that HRT may be protective against coronary heart disease. The review also points to the consistent evidence across trials suggesting that HRT use is associated with an increased risk of stroke.

HRT has been used increasingly across western populations since the early 1990s - an estimated 20 million women in western countries were using HRT at the end of the past decade. Around a third of women in their fifties in the U.K. use HRT for an average of 5 years, with a similar proportion in the rest of Europe. The impact of HRT on health outcomes has been widely debated, with suggestions that HRT use may increase the risk of certain cancers - notably breast cancer - while also being protective against osteoporosis and coronary heart disease.

Valerie Beral and colleagues from Cancer Research U.K.'s Epidemiology Unit, Oxford, reviewed the existing data on the effects of HRT on seven life-threatening conditions - largely based on data from four randomized trials, one involving an estrogen-only treatment, the others using a combined estrogen/progestagen combination - to provide an up-to-date analysis of the long-term effects of HRT use.

Evidence from the four HRT trials (which ...

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