Epidemiology of Coronary Disease in Industrial Workers

Abstract
Absenteeism and serum lipids were studied in a group of 164 male production workers of a factory, in relation to coronary disease. After exclusion of groups with excessive absence rates and men with nonheart disease causes of abnormal serum lipids, 98 men without evidence of ischemic heart disease (IHD) were available for comparison with 17 survivors and nonsurvivors of IHD. A number of trends and statistical differences between groups supported the hypothesis that subjects with IHD differed, perhaps genetically, from the normal men, and that the differences point toward underlying factors promoting resistance to noncoronary diseases in some men with a pre -disposition to ischemic heart disease.