硅铁和硅金属是电子工业、化学工业和冶金工业的重要原料。为探讨从事硅铁和硅金属生产工作对工人癌症发病率的影响而进行了这次队列研究。研究对象为 8530名于1 933～ 1 991年在挪威 8家硅铁或硅金属生产工厂至少工作 6个月的男性工人 ,从工厂工人档案中收集研究对象的人口统? Ferrosilicon and silicon metal are important raw materials for the electronics industry, chemical industry and metallurgy industry. The cohort study was conducted to investigate the impact of ferrosilicon and silicon metal production on the incidence of cancer in workers. The study consisted of 8530 male workers who worked in Norway’s eight ferrosilicon or silicon metal factories for at least six months from 1933 to 1991. The population of the study participants was collected from the factory worker files.