Ohlson C G, Hogstedt C
Br J Ind Med. 1985 Jun;42(6):397-402. doi: 10.1136/oem.42.6.397.
A cohort study of 1176 Swedish asbestos cement workers did not indicate any asbestos related excess mortality. Possible explanations of the negative outcome are relatively low exposure levels and the predominant use of chrysotile in production. Such a tentative conclusion is supported by a review of five mortality studies of workers exposed to asbestos cement that report considerable differences in relative risks for lung cancer. These differences could be explained by various degrees of cumulative exposure, the amount of amphiboles in the production, and methodological shortcomings. A median exposure of 10-20 fibre-years does not seem to cause an increased risk of lung cancer, particularly when only chrysotile is used.
一项针对1176名瑞典石棉水泥工人的队列研究未显示出任何与石棉相关的超额死亡率。该阴性结果的可能解释是接触水平相对较低以及生产中主要使用温石棉。对五项石棉水泥接触工人死亡率研究的综述支持了这一初步结论，这些研究报告了肺癌相对风险存在显著差异。这些差异可以通过不同程度的累积接触、生产中角闪石的含量以及方法学缺陷来解释。10 - 20纤维年的中位接触量似乎不会增加肺癌风险，尤其是在仅使用温石棉的情况下。
