Comparison of crude and smoking-adjusted standardized mortality ratios.
To systematically evaluate bias in estimating relative risks associated with occupational exposures obtained in the absence of smoking data, the authors compared crude and smoking-adjusted standardized mortality ratios for selected occupations using data from a study of U.S. veterans. Crude and smoking-adjusted SMRs were highly correlated: lung cancer (r = .88), bladder cancer (r = .98), and intestinal cancer (r = .97). Greater differences occurred for lung cancer, which is more strongly related to smoking than bladder or intestinal cancer.
D006801:Humans; D007414:Intestinal Neoplasms / Q000401:mortality; D008175:Lung Neoplasms / Q000401:mortality; D008297:Male; D009784:Occupational Diseases / Q000401:mortality*; D012907:Smoking; D014481:United States; D001749:Urinary Bladder Neoplasms / Q000401:mortality