The Evans County Cardiovascular Epidemiologic Study was initiated in 1960 in an attempt to confirm the clinical observation that coronary heart disease (CHD) appeared to occur less frequently among blacks than whites.
Following a private census of the county, attempts were made to enroll 100% of those residents over 40 years of age and a 50% random sample of those between 15 and 39 years. Of the 3,371 eligible, 3,102 (92%) cooperated and underwent a complete medical examination, a battery of laboratory tests including a 12-lead electrocardiogram and chest roentgenogram, and for a 10% subsample, a detailed dietary history. The medical examinations were conducted by two physicians, John McDonough, MD, and Glen Garrison, MD, and the dietary history by Sarah Stulb. The results of the prevalence survey, which took approximately 18 months to complete, have been reported in some detail elsewhere.1,2 What follows here is a brief resume of