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用典型抽样回顾性队列研究方法,对8个不同煤矿进行了现场尘肺流行病学调查。经过横断面患病率、入矿队列患病率和双变量调整的患病率分析,发现调查煤矿间尘肺患病率有明显差别,且这些差别已排除了主要混杂因素的影响。不同煤种、不同地质条件煤矿的患病率有明显差别。并对影响煤工尘肺流行的主要因素进行了分析讨论。
In a typical retrospective cohort study, eight pneumoconiosis epidemiological surveys were conducted. After the cross-sectional prevalence, the prevalence of the mine-in cohort and the prevalence of bivariate adjustment, it was found that there was a significant difference in the prevalence of pneumoconiosis among coal mines, and these differences have ruled out the main confounding factors. Different coal types, different geological conditions prevalence of coal there are significant differences. The main factors influencing the popularity of coal workers’ pneumoconiosis were analyzed and discussed.