Screening persons aged 65 and older for coronary heart disease risk factors.

Because of limited clinical investigations addressing the effectiveness of intervention to reduce known risk factors, it is difficult for primary care physicians to decide on which coronary heart disease risk factors to continue to screen for among older patients. The recently published report of the United States Preventive Services Task Force, using explicit screening criteria, has recommended that several risk factors be investigated for use among older adults. Recent longitudinal studies have found that a number of risk factors persist with advancing age-hypertension, left ventricular hypertrophy, impaired glucose metabolism, elevated cholesterol levels, obesity, smoking, physical inactivity, decline in vital capacity, and increased heart rate. Screening to identify many of these risks and treatment and counseling to modify them appear to improve survival. Evidence is less clear that diabetes mellitus and elevated cholesterol levels have the same significance for men and women as they age. Left ventricular hypertrophy and diabetes seem particularly important as risk factors for older women, whereas a high heart rate may be a greater risk for men.