New study says HRT could be safeGetty

A review of the research which linked hormone replacement therapy (HRT) with cancer has concluded it was not "reliable".

According to the review by Professor Samuel Shapiro, an epidemiologist at Cape Town Medical School, South Africa, the Million Women Study's research was inaccurate.

The original research, which associated taking HRT with doubling the risk of breast cancer, caused an estimated one million women to stop taking the pills.

The researchers who carried out the Million Women Study at Cancer Research UK's Epidemiology Unit said taking HRT "doubled the risk of breast cancer compared to women who didn't take it."

However the new review said the study's design was inaccurate. Professor Shapiro mentioned the fact that women who were found to have cancer within weeks of the study beginning were still included in the data, which affected the findings.

The review, which was published in the Journal of Family Planning and Reproductive Health Care, said: "Size alone does not guarantee that the findings are reliable. HRT may or may not increase the risk of breast cancer, but the MWS does not establish that it does."

Review co-author Dr John Stevenson, consultant metabolic physician at Imperial College, London, and Royal Brompton Hospital London, told the Daily Mail: "So much damage has been done by frightening women off HRT, in terms of reducing their quality of life, preventing bone loss and fractures and improving the risk of cardiovascular disease."

"HRT is one of the cheapest treatments in medicine and we have yet to count the cost to the NHS because of women not having HRT."

Do you think HRT is safe to take or not? Let us know below...

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