[Epidemiological studies on multiple primary malignant tumors in Nagasaki City].
Ninety-four cases of multiple primary malignant tumors registered at the Nagasaki Tumor Registry during the period from 1973-1977 were studied. The crude incidence rate tended to be higher in atomic bomb survivors although the difference was not significant. The male:female ratio was 1:1.19. Cases in the sixth decade of life were dominant, the average age was somewhat lower in females than in males. Stomach cancer was observed in 48 patients (51.1%; triple malignancies in 8 cases (8.5%).
D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology*; D009689:Nuclear Warfare; D012042:Registries; D013274:Stomach Neoplasms / Q000453:epidemiology*; D013964:Thyroid Neoplasms / Q000453:epidemiology; D014594:Uterine Neoplasms / Q000453:epidemiology