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Cholesterol and Coronary Artery Disease--Do We Treat Low HDL Cholesterol or High Triglycerides?

Wilbert S. Aronow, MD, CMD, Clinical Professor of Medicine, Department of Medicine, Divisions of Cardiology and Geriatrics, New York Medical College, Valhalla, NY.

Serum High-Density Lipoprotein Cholesterol
A low serum, high-density lipoprotein (HDL) cholesterol is a risk factor for the development of new coronary events in older men and women.1-6 In the Framingham Heart Study,1 in the Established Population for Epidemiologic Studies of the Elderly Study,4 and in 2,152 older men and women,3 a low serum HDL cholesterol was a more powerful predictor of new coronary events than was serum total cholesterol. In 1,793 older men and women, mean age 81 years, a decrease of 10 mg/dL (0.26 mmol/L) of serum HDL cholesterol significantly increased by 2.56 times, the probability of having coronary artery disease after controlling for other prognostic variables.2 At 48-month follow-up of 1,488 older women, mean age 82 years, and at 40-month follow-up of 664 older men, mean age 80 years, a decrease of 10 mg/dL (0.26 mmol/L) of serum HDL cholesterol significantly increased the relative risk of developing new coronary events by 1.95 times in women and by 1.7 times in men, after controlling for other prognostic variables.