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The following report, the first in a series, presents the characteristics of the population in the Evans County (Ga.) cardiovascular disease study.Sub¬ sequent papers will report the findings.ACAKDIOVASCULAK disease field study began in Claxton, Evans County, during 1958-60.The study developed from observa¬ tion by one of the authors (C.G. H.), a medical practitioner living in Claxton, that coronary heart disease seemed to occur less commonly among Negro than white patients.Evans County (fig. 1) is located on the coast¬ al plain about 60 miles inland from the port city of Savannah, Ga.The county is 19 miles in greatest diameter, and consists of flat or slightly rolling terrain of red clay and sand soils.Much of the county is covered by pine f orests, which are harvested for pulpwood, turpentine, and lumber.About half of the population live on farms; the other half live in a few small vil¬ lages including the town of Claxton (popula-
McDonough et al. (Tue,) studied this question.