Study identifies determinants of estradiol levels among women using hormone therapy

The benefits of hormone therapy (HT) on atherosclerosis relates to achieved estradiol levels among those women who initiate HT early in postmenopause. Despite the use of hormones, however, women's estradiol levels are often inconsistent. A new study identifies the various determinants of estradiol levels among healthy women using HT. Study results will be presented during The North American Menopause Society (NAMS) Annual Meeting in Chicago, September 25 to 28, 2019.

The researchers involved in the new study relied on analysis of data from the Early versus Late Intervention Trial with Estradiol (ELITE). Their work in this area previously showed that estradiol levels were higher among early compared to late postmenopausal women. The new research focused on identifying the various factors affecting estradiol levels and how this impacted a woman's risk of developing atherosclerosis (hardening of the arteries).

The research yielded a number of results. Higher estradiol levels were associated with such determinants as higher BMI, higher weight, higher creatinine, and antihypertensive medication use, among others. Current and past smoking and use of antifungal medicine were associated with lower estradiol levels. These determinants were similar between early and late postmenopausal women.

Healthcare providers need to consider the impact of these various factors when attempting to reach desirable estradiol levels in their postmenopausal patients and understand that not all women's bodies will respond the same to hormone therapy."

Dr. Intira Sriprasert, lead author of the study, Keck School of Medicine, University of Southern California

"NAMS continues to promote individualized approaches to treating women's menopause symptoms, and this study provides one more piece of evidence as to why such individualization is critical," says Dr. Stephanie Faubion, NAMS medical director.

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