Menopause and Risk of Cardiovascular Disease

Abstract
The relation of menopause to cardiovascular disease incidence was examined in women < 55 yr old from the cohort of 2873 women in the initial Framingham [Massachusetts, USA] examination. Although the number of person-years of experience during the 20 yr of observation was nearly the same for premenopausal and postmenopausal status, there were only 20 cardiovascular events among the premenopausal women in this age group whereas 70 events occurred among the postmenopausal women of the same age. In each specific age group studied incidence rates were lower in premenopausal than postmenopausal women. This was also true for coronary heart disease. Contrast for hard diagnoses of cardiovascular disease (excluding diagnoses of angina pectoris and intermittent claudication) was in the same direction. Although cholesterol and Hb did rise somewhat more steeply in women undergoing the menopause, this greater incidence of cardiovascular disease in postmenopausal women could not be explained by the influence of the menopause on the usual cardiovascular risk factors.

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