American journal of preventive medicine
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This study evaluated recent trends in the prevalence of coronary heart disease in the U.S. population aged ≥40 years. ⋯ The overall prevalence of coronary heart disease including angina and myocardial infarction decreased significantly over the 12-year survey period. However, this reduction was seen mainly among persons without established coronary heart disease risk factors. There was no change in coronary heart disease prevalence among those with specific coronary heart disease risk factors.