煤工尘肺预期发病工龄寿命表法研究

Life Table Study on Expecting Working Age for Occurrence of Coal Workers' Pneumoconiosis

目的 研究煤工尘肺预期发病工龄。方法 收集整理某局 196 0～ 1995年期间的 82 91份接尘工人健康检查资料 ,分别计算不同时间的尘肺累积发病数 ,队列寿命表法求得矿工预期发病工龄。结果 煤矿工人的接尘工龄与累积患病率的概率单位之间呈正相关 (r =0 98,P =0 0 0 0 1) ,煤工尘肺的发病率随工龄的增加而增高 ,预期发病工龄随工龄的增加而缩短。结论 煤矿工人的尘肺发病工龄约为 15年左右 ,在目前煤矿粉尘浓度水平的条件下 ,若想把尘肺患病率控制在 1%左右 ,各工种的工人接尘期限以不超过 6年为宜。

Objective The expecting working age for the occurrence of coal workers pneumoconiosis was studied in 8 291 miners exposed to dust in different time periods during 1960-1995.Methods Cohort life table method was used.Results The results showed that the working age of dust exposure among coal miners was related with cumulative prevalence probability(r=0 98 P=0 0001).The incidence rate of coal workers pneumoconiosis increased with the working age of dust exposure,and the expected working age of dust exposure at onset decreased with the working age.Conclusions Under the present situation of dust concentration,it was suggested that years of dust exposure should be less than 6 years for various jobs,if the incidence was intended to be controlled around 1%.