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Title: Occupational risks for primary liver cancer in Shanghai, China.
Authors: Chow WH,  McLaughlin JK,  Zheng W,  Blot WJ,  Gao YT
Journal: Am J Ind Med
Date: 1993 Jul
Branches: BB, ITEB, OEEB
PubMed ID: 8352295
PMC ID: not available
Abstract: Using occupational data for over 3,400 primary liver cancer cases diagnosed between 1980 and 1984 reported to the Shanghai Cancer Registry, and employment information from the 1982 census for the Shanghai population, standardized incidence ratios were computed to generate leads to occupational risks of liver cancer. Among men, a statistically significant excess number of cases was observed for chemical processors, textile workers, wood workers, blacksmiths and machine-tool operators, and material handlers and dock workers. Increased incidence of liver cancer also was observed among female transport equipment operators. These findings indicate that a number of similar occupations are associated with increased risk of primary liver cancer in western countries and China. Although causal inferences cannot be drawn from these data, our study adds to the limited evidence of the potential role of occupational exposures in liver carcinogenesis.