Cockcroft A, Lyons J P, Andersson N, Saunders M J
Br J Ind Med. 1983 May;40(2):169-72. doi: 10.1136/oem.40.2.169.
A total of 124 coal workers and ex-coal workers receiving disability benefit for coal worker's pneumoconiosis and routinely reattending the Cardiff Pneumoconiosis Medical Panel during a 10-week period were studied. Those with complicated pneumoconiosis were excluded. Their current chest radiographs and their chest radiographs at the time of certification were read in random order by three readers using the 1980 ILO Classification of Radiographs. An irregularity score was derived from the readings. The x-ray findings were examined for changes since certification and for relationships with age, smoking, and underground coal work exposure. One-fifth of the current radiographs showed mainly irregular opacities, whereas nearly all of those from the time of certification showed mainly irregular opacities, whereas nearly all of those from the time of certification showed mainly rounded opacities. Irregular opacities were related to age, smoking, and underground exposure. The exposure effect remained after excluding the older men. The findings suggest that radiological irregular opacities, and their associated pathology and lung function changes, commonly develop in coal workers with pneumoconiosis and should be considered part of the condition.
在为期10周的时间里，对124名因煤工尘肺领取残疾津贴且定期复诊于加的夫尘肺病医疗小组的在职和离职煤工进行了研究。患有复杂尘肺病的患者被排除在外。三位阅片者按照随机顺序，依据1980年国际劳工组织（ILO）的胸片分类标准，阅读他们当前的胸片以及确诊时的胸片。根据阅片结果得出不规则度评分。对自确诊以来的X线检查结果变化以及与年龄、吸烟和井下采煤工作接触情况的关系进行了检查。五分之一的当前胸片主要显示不规则阴影，而几乎所有确诊时的胸片主要显示圆形阴影。不规则阴影与年龄、吸烟和井下接触有关。排除年龄较大的男性后，接触效应依然存在。研究结果表明，在患有尘肺病的煤工中，放射学上的不规则阴影及其相关的病理学和肺功能变化普遍存在，应被视为该病症的一部分。
