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Effect of Dust Suppression Measures on the Prevalence of Coal-workers Pneumoconiosis in the Dutch Coal-mines

机译:降尘措施对荷兰煤矿工煤尘肺病患病率的影响

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摘要

The underground workers in the Dutch coal-mines have been radiographed (70 mm.) seven times since 1949. The prevalence of coal-miners' pneumoconiosis shows a continuous decrease in all age groups. To evaluate the effect of the intensive system of dust suppression over this period a cohort analysis was made of the proportion of men with pneumoconiosis with the same number of years of exposure underground but who started work in different years. The results show that the number of men with pneumoconiosis decreases the longer they have worked in the period since dust suppression measures were applied intensively. The differences are significant at the 5% level.
机译:自1949年以来,对荷兰煤矿的地下工人进行了7次射线照相(70毫米)。煤矿工人尘肺病的患病率在所有年龄段中都在持续下降。为了评估这一时期集尘系统的效果,对队列暴露时间相同但在不同年份开始工作的尘肺病男性比例进行了队列分析。结果表明,自从尘埃抑制措施得到广泛应用以来,尘肺的男性人数随着工作时间的延长而减少。差异在5%的水平上很显着。

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