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Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet]. York (UK): Centre for Reviews and Dissemination (UK); 1995-.

Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet].

Postmenopausal status and early menopause as independent risk factors for cardiovascular disease: a meta-analysis

Review published: 2006.

Bibliographic details: Atsma F, Bartelink M E, Grobbee D E, van der Schouw Y T.  Postmenopausal status and early menopause as independent risk factors for cardiovascular disease: a meta-analysis. Menopause  2006; 13(2): 265-279. [PubMed: 16645540]

Abstract

OBJECTIVE: Loss of ovarian function and subsequent deficiency of endogenous estrogens is suggested to enhance cardiovascular disease risk and related death after menopause. The aim was to obtain valid estimates of the cardiovascular disease risk associated with postmenopausal status and early menopause.

DESIGN: A literature search of observational studies was performed using PubMed and EMBASE (1966 to May 1, 2004). Eighteen studies on postmenopausal status and age at menopause in relation to cardiovascular disease were selected. Six studies investigated menopausal status, nine studies investigated menopausal age, and three studied both. General variance-based methods were used to pool relative risk estimates and corresponding 95% confidence intervals. Stratification was performed for study design, type of menopause, outcome, and adjustment for age and smoking.

RESULTS: The pooled relative risk estimate for postmenopausal versus premenopausal status and cardiovascular disease was 1.36 (95% CI, 1.15-1.60). In the stratified analysis, the pooled effect was 0.96 (95% CI, 0.77-1.21) after controlling for age and smoking. The pooled effect of bilateral oophorectomy on cardiovascular disease was 2.62 (95% CI, 2.05-3.35). For early menopause and cardiovascular disease, with the menopausal age category containing 50 years as a reference, the pooled relative risk estimate was 1.25 (95% CI, 1.15-1.35). In the stratified analysis, the pooled effect was 1.38 (95% CI, 1.21-1.58) after controlling for age and smoking. The pooled effect of bilateral oophorectomy on cardiovascular disease was 4.55 (95% CI, 2.56-8.01).

CONCLUSIONS: Overall, there was no convincing relationship between postmenopausal status and cardiovascular disease. However, there was a modest effect of early menopause on cardiovascular disease. The effect was more pronounced for women with an artificial menopause than for women with a natural menopause.

CRD has determined that this article meets the DARE scientific quality criteria for a systematic review.

Copyright © 2014 University of York.

PMID: 16645540

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