Beasley, Allen, Crow, Methvin, Portis & Miles, P.C.

A new study published this week in the New England Journal of Medicine suggests a sudden decrease in breast cancer in several countries worldwide is likely linked to the 2002 Women’s Health Initiative (WHI) finding that hormone replacement therapy (HRT) after menopause can dramatically increase a woman’s risk of breast cancer and other serious health problems, the Wall Street Journal reports.

Prior to the initiative in 2002, more than 200,000 American women were diagnosed with breast cancer each year. After 2002, that rate dropped below 190,000 each year since. Statistics from other countries show similar results.

Despite the findings, some researchers aren’t convinced the drop is due to a decrease in hormone use. For one, mammography was increasing in the late 1990s, enabling physicians to detect breast cancer earlier than before. This is an argument favored by Joseph Camardo, senior vice president of global medical affairs for Wyeth, the maker of hormone replacement drug Prempro. Wyeth is facing lawsuits from more than 11,000 women who took Prempro. Other critics of the campaign against HRT say that the drop was far too sudden to be linked to to the WHI findings.

The new study is a response by doctors involved in WHI who stand firm on their belief that HRT lead to serious health risks for women.

“These are non-conventional analyses, but I think this is the best data we have,” Rowan Chlebowski, a University of California, Los Angeles doctor who led the new study, was quoted in the news story. “This really suggests there’s a great benefit to women for stopping, because the risk goes down almost immediately.”

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