Research

Hormonal

Conjugated equine estrogen (CEE) increases the risk of stroke in postmenopausal women with prior hysterectomy.

If you are considering CEE for menopausal symptoms, be aware that it increases your risk of stroke by about 39%. This risk is significant enough that CEE is not recommended for chronic disease prevention.

StrongSupportsVERY_HIGH confidence
The use of CEE increases the risk of stroke... The incidence of stroke was increased by 39% in the CEE group (44 vs 32 per 10000 person-years, z=−2.72, P = .007)
Garnet L. Anderson et al. · JAMA · 2004

Why this rating

Large-scale RCT with clear statistical significance (P=.007) and crossing of adverse effect monitoring boundary.

Source

Effects of Conjugated Equine Estrogen in Postmenopausal Women With Hysterectomy

Garnet L. Anderson et al. · JAMA · 2004

DOI 10.1001/jama.291.14.1701

rct · n=10739Cited 4,458×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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