Army technologists: 29-year follow up for cause of death.

A previous 18-year follow-up study revealed no significant excess of cancer among men who served in the Army during World War II as radiological technologists (n = 6,560) as compared with men who served as medical, laboratory, or pharmacy technologists (n = 6,826). Extension of the follow up by 11 years (1946-1974) revealed that 145 former radiological technologists had died of cancer, as compared with 158 controls. No statistically significant differences were found between these groups for individual sites of cancer or for deaths from other causes.