In 1984-1985 a 25 year follow-up was conducted on the original Charleston Heart Study cohort. The vital status of 98 percent of the 1960 cohort was ascertained. Ninety-three percent of the survivors were revisited, interviewed, and measured for blood pressure, weight, and height. The interaction of socioeconomic status, type A behavior and John Henry behavior scores were tested. All-cause and coronary heart disease mortality were determined.