Hurley J F, Burns J, Copland L, Dodgson J, Jacobsen M
Br J Ind Med. 1982 May;39(2):120-7. doi: 10.1136/oem.39.2.120.
Five physicians' radiological assessments of coalworkers' simple pneumoconiosis (CWP) in 2600 coalminers at 10 British collieries have been studied in relation to the individuals' estimated lifetime (mean 33 years) exposure to respirable coalmine dust. Estimates of exposure were based on 20 years of observations at each colliery. Radiographic classifications were clearly associated with the measures of dust exposure. Important unexplained differences between some of the collieries were disclosed. Among men with similar cumulative dust exposures those with longer exposure time had higher prevalence of CWP. In general there was no evidence that the quartz concentrations experienced (average 5% of mixed dust) affected the probability of developing coalworkers' simple pneumoconiosis. Some men reacted unfavourably (two or more steps of change on the 12-point radiological scale) over a 10-year period to coalmine dust with a relatively high quartz content.
对英国10家煤矿的2600名煤矿工人的煤工单纯性尘肺（CWP）进行了5位医生的放射学评估，并将其与个体估计的终身（平均33年）可吸入煤矿粉尘暴露情况进行了研究。暴露估计基于每个煤矿20年的观察数据。放射学分类与粉尘暴露测量结果明显相关。一些煤矿之间存在重要的无法解释的差异。在累积粉尘暴露相似的男性中，暴露时间较长者的CWP患病率较高。总体而言，没有证据表明所接触的石英浓度（平均占混合粉尘的5%）会影响患煤工单纯性尘肺的概率。一些男性在10年期间对石英含量相对较高的煤矿粉尘反应不佳（在12分放射学量表上有两级或更多级变化）。
