一些研究表明,石棉水泥工业的肺癌死亡率较接触石棉的其它某些工业为低。本次调查从1951年开始到1982年结束,初步结论亦未表明石棉水泥工人肺癌危险性有所增加。根据公司的记载,对1943～1976年间工作三个月以上的1176名石棉水泥工人进行队列研究,通过国家健康保险记录和教区的葬礼记录,查明他们的生存死亡情况,核对死者的死亡证明,确定正式的基 Some studies show that asbestos cement industry has lower lung cancer death rates than some other industries exposed to asbestos. The survey, which began in 1951 and ended in 1982, did not indicate any increase in the risk of lung cancer among asbestos-cement workers. According to company records, 1176 asbestos-cement workers who worked for more than three months between 1943 and 1976 were enrolled in a cohort study. Their national health insurance records and diocese’s funeral records were used to identify their living and death cases, to verify the deceased’s death certificate, Determine the formal basis