Danish Study Provides New Information On Hormone Replacement Therapy and the Risk of Heart Attacks
Posted Oct 07 2008 6:15pm
It’s not what you take but the way that you take it that can produce different results in women who take hormone replacement therapy (HRT), according to new research on the association between HRT and heart attacks, published online in Europe’s leading cardiology journal, the European Heart Journal.
The study is the largest to look at the effects of HRT since the Women’s Health Initiative trial was stopped early after finding that HRT increased the risk of women developing a range of conditions including breast cancer and thromboembolism.
The research is an observational study of 698,098 healthy Danish women, aged 51-69, who were followed between 1995-2001. It has found that overall there was no increased risk of heart attacks in current users of HRT compared to women who had never taken it.
However, it did find that in younger women (aged 51-54) who were taking HRT during the period of the study, their risk of heart attacks was about a quarter (24%) more than in women who had never taken HRT. In addition, in younger women there was an increasing risk with longer duration of HRT, which was not seen in the older age groups.