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本文对职业性接触亚硝酸盐可否引起肿瘤死亡增高进行了流行病学调查。结果表明:(1)接触者癌症死亡水平并不高于上海市一般人群,但略高于上海市手工业局系统的死亡水平。其胃癌、肺癌,肝癌的位次与上海市的位次基本一致,(2)未见接触防锈水(内含NaNO_2)与胃癌之间呈接触-反应关系。本文还结合文献讨论了与职业流行病学有关的一些理论和实践问题,并提出了加强预防措施的几点建议。
This article conducts an epidemiological survey of whether occupational exposure to nitrite can cause increased tumor death. The results showed that: (1) The death rate of cancer in contact was not higher than that of the general population in Shanghai, but it was slightly higher than the death level of the Shanghai Bureau of Handicrafts. The ranks of gastric cancer, lung cancer, and liver cancer were basically the same as those of Shanghai. (2) There was no contact-response relationship between exposure to rust-proof water (containing NaNO 2 ) and gastric cancer. This article also discusses some theoretical and practical issues related to occupational epidemiology in combination with literature, and proposes several suggestions for strengthening preventive measures.