目前有关煤工与肺癌标准死亡率之间关系研究的报告不一致。因此,作者研究了在吸烟对照情况下肺癌死亡的危险与接触煤矿粉尘之间的关系。作者选择317例男性白人煤工肺癌死亡病例,与两组死于非癌症、非事故原因的煤矿工作病例对照研究。1:1病例配对(死亡时年龄配对)用来检查接触煤 The current report on the relationship between coal miners and lung cancer mortality rates is inconsistent. Therefore, the authors studied the relationship between the risk of death from lung cancer and the exposure to coal dust in the context of smoking controls. The authors selected 317 male white coal workers died of lung cancer, and two died of non-cancer, non-accidental coal mine control case study. A 1: 1 case pairing (paired at age of death) was used to check for contact with coal