Follow-Up Study of Serum Cholesterol, Diet and Physical Findings of Italian-American Factory Workers

A repeat study, after a two-year interval, was carried out on 147 Italian-American factory workers. For the group there were no significant changes in serum cholesterol levels or relative weight although some persons showed considerable change. The mean serum cholesterol level of smokers of one or more packages of cigarettes a day was significantly higher and their relative weight was significantly lower than that of nonsmokers. The repeat diet histories showed no significant mean differences in calories or grams of fat and protein for the group, but individual variations were found.