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目的：调查和分析从事石油化工作业职工恶性肿瘤死亡状况。方法：资料由石油化工厂人事部门提供，死因按ＩＣＤ－９分类，标化死亡率按１９６４年第二次全国人口普查资料计算，病例均为一、二级诊断。结果：该厂２１年间各种死因的年平均死亡率为１５６．５８／１０万，其中恶性肿瘤在全死因位次占第一位，恶性肿瘤死亡率随年龄而上升，不同民族恶性肿瘤死亡率不同（χ２＝６．６７，Ｐ＜０．０５）。结论：石油化工厂职工白血病死亡率超过参照人群，其ＳＭＲ＝１５１，Ｐ＜０．０１，表明该厂职工患白血病的危险性增高。
Objective: To investigate and analyze the malignant tumor deaths of workers engaged in petrochemical operations. Methods: The data were provided by the personnel department of the petrochemical plant. The cause of death was classified according to ICD-9. The standardized mortality was calculated according to the second national census data from 1964. Cases were diagnosed as primary and secondary diseases. Results: The annual average mortality rate of various causes of death in this factory was 156.58 per 100 000 in 21 years, among which malignant tumors occupied the first place in the total cause of death. Mortality of malignant tumors increased with age, malignant tumor mortality rates of different ethnic groups. Different (χ2=6.67, P<0.05). Conclusion: The leukemia mortality rate of workers in petrochemical plants exceeds that of the reference population, and its SMR = 151, P < 0.01, indicating that the risk of leukemia is higher among workers in this factory.