Frequent elevation of tissue polypeptide antigen in the sera of workers exposed to bladder carcinogens

Abstract
A group of 108 male workers previously exposed to bladder carcinogens and a group of 26 patients with carcinoma of the bladder differed significantly from a control group comprising 63 healthy male donors with respect to their levels of tissue polypeptide antigen (TPA). The risk group exhibited 4–6 times more frequent elevations of TPA than did the group of healthy donors.