The study, which was published in the March 29 issue of the Journal of the National Cancer Institute, looked into women who took estrogen plus progestin, which is the most common HRT treatment for women who havnt had a hysterectomy. Women who have had a hysterectomy take estrogen therapy.
The link between HRT and breast cancer has been known since the well known WHI study reported its findings in 2002. Since then, other studies have confirmed the link between HRT and breast cancer.
This excerpt from the Health Day site will tell you more about this study and the link between HRT and breast cancer
Women who take hormone therapy that includes estrogen and progestin are at increased risk of developing breast cancer and dying from it, especially if they start
taking the therapy just as menopause begins, a new analysis confirms.
Researchers followed nearly 42,000 women, all of whom were past menopause, for an average of more than 11 years. Of those, more than 25,000 did not use hormone therapy and more than 16,000 took estrogen and progestin, also called combined hormone therapy. For this analysis, the researchers did not include estrogen-only therapy, used by women who have had a hysterectomy.
At the end of the follow-up period, more than 2,200 of the women were found to have breast cancer. Compared to non-users, those who took combined therapy were more likely to have breast cancer, said Dr. Rowan Chlebowski, a medical oncologist at the Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center. Chlebowski led the study, which was published in the March 29 issue of the Journal of the National Cancer Institute.
The link has been found in other studies, but Chlebowski also found the risk was greatest among those who took the hormones closest to menopause. “Women starting within months of menopause had about a threefold greater risk than women starting 10 years after menopause,” Chlebowski said.
Earlier this year, many of the leading medical organizations in this country, and many doctors, renewed their campaign to encourage women to take HRT for relief from their symptoms, despite the evidence that links HRT and breast cancer. Fortunately 90% of women refuse to take it.
Why would these medical organizations, and the doctors who are influenced by them, be pushing HRT on women in the face of evidence surrounding the risks associated with it?
One gynecologist has said that drug companies promote and run medical conventions and conferences to promote their products and these are normally the products doctors have information about and are educated in, making them the ones they prescribe to their patients.
Another medical doctor said that pharmaceutical companies have very strong relationships with societies such as The Endocrine Society, The North American Menopause Society and The American College of Obstetricians and Gynecologists and have a significant influence over them.
Please help to spread the word about this new study that provides further evidence that links HRT and breast cancer.