Research

Hormonal

Combined estrogen plus progestin hormone therapy does not prevent coronary heart disease and increases the risk of CHD, particularly during the first year of use.

Do not use estrogen plus progestin to prevent heart disease. For postmenopausal women with an intact uterus, this combination increases the risk of coronary heart disease, especially in the first year of use. It should not be prescribed for cardiovascular prevention.

StrongRefutesHIGH confidence
Estrogen plus progestin does not confer cardiac protection and may increase the risk of CHD among generally healthy postmenopausal women, especially during the first year after the initiation of hormone use.
JoAnn E. Manson et al. · New England Journal of Medicine · 2003

Why this rating

Large-scale, double-blind, randomized controlled trial (n=16,608) with centrally adjudicated endpoints.

Source

Estrogen plus Progestin and the Risk of Coronary Heart Disease

JoAnn E. Manson et al. · New England Journal of Medicine · 2003

DOI 10.1056/nejmoa030808

rct · n=16608Cited 2,063×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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