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Breast arterial calcification (BAC), considered a benign finding, is inconsistently reported in mammographic records. Mammographically detected BAC is associated with presence of coronary heart disease (CHD), but whether BAC can predict future CHD risk is unknown. To address this question, investigators conducted a 5-year prospective study that involved 1500 women who underwent screening mammography in 2004 in Hartford, Connecticut. At baseline and at 2, 4, and 5 years, participants completed demographic questionnaires about CHD risk factors (smoking, exercise habits, menopausal status, hypertension, diabetes, elevated cholesterol, and family histories of CHD) as well as self-reported CHD, angina, or stroke.
Compared with women without BAC, …