鞍钢焦炉工人肺癌进一步研究

本文对鞍钢焦炉工人的肺癌,在前期回顾性队列研究基础上,作了进一步研究。队列由焦化厂4171名男性工人组成,以1971～1985年为观察期,在此15年期间共积累57153人年。与鞍钢初轧厂男职工人群比较,焦化厂炼焦工作区中焦炉和非焦炉工人的肺癌SRR分别为4.88(P<0.01)和0.50(P>0.05)。炉顶和炉侧工人的肺癌SRR分别为5.74(P<0.01)和3.52(P<0.01)。该区工人的肺癌超出量,以炉顶、炉侧、非焦炉的顺序,呈现梯度(SRR为5.74>3.52>0.50),并与相应场所空气中平均苯溶物浓度相一致。其它工作区工人的肺癌无明显超出。

A FURTHER STUDY OF MORTALITY OF LUNG CANCER AMONG COKE-OVEN WORKERS

A further study of lung cancer among coke-oven workrs was conducted on the basis of previous retrospective cohort mortality study at the coking plant of this corporation. The cohort was studied over an overall observation period of 15 years, from 1971 through 1985, and consisted of 4171 male workers at the plant, with an accumulation of 57153 person-years. The standardized rate ratio(SRR) from lung cancer among coke-oven workers was 4.88 (P<0 01) as compared with the rough rolling mill worker population in the same corporation,and that among non-oven workers at the coking work area in the plant was 0.50 (P>0.05) .The SRRs from lung cancer among oven-top and oven-side workers were 5.74 and 3.52 res pectively (P<0.01) . And a gradient of excess risks (SRRs: 5.74>3.52>0.50) consistent with appropriate mean concentration lung cancer of benzene solubles in workplace air appeared obviously. Therewas no significant excess of lung cancer at other work areas.