Søyseth Vidar, Johnsen Helle Laier, Benth Jūrate Saltyte, Hetland Siri Merete, Kongerud Johny
Department of Medicine, Faculty Division, Akershus University Hospital, University of Oslo, N-1478 Lørenskog, Norway.
J Occup Environ Med. 2007 Sep;49(9):1020-6. doi: 10.1097/JOM.0b013e3181452830.
To investigate the association between decline in lung function and production of alloys in the Norwegian smelting industry.
All employees (N = 3924) were examined annually for 5 years (16,570 examinations). The employees were classified into three categories: 1) line operators (employed full time in the production line), 2) nonexposed (no exposure last year), and 3) non-line operators (remaining subjects). The outcome variable was expressed as forced expiratory volume in 1 second per squared height (FEV1/height(2)).
In the subcohorts of the ferrosilicon/silicon metal and silicon carbide industries, the differences between line operators and nonexposed workers were -2.3 (-4.3 to -0.3) (CI = 95%) and -5.6 (-10.4 to -0.7) mL/(m(2) x year), respectively.
Line operators in the ferrosilicon/silicon metal and silicon carbide industries had a steeper annual decline in FEV1/height compared with nonexposed workers.
研究挪威冶炼行业肺功能下降与合金生产之间的关联。
对所有员工（N = 3924）进行了为期5年的年度检查（共16570次检查）。员工被分为三类：1）生产线操作员（在生产线全职工作），2）未暴露者（去年无暴露），3）非生产线操作员（其余受试者）。结果变量表示为每平方米身高的1秒用力呼气量（FEV1/身高²）。
在硅铁/金属硅和碳化硅行业的亚队列中，生产线操作员与未暴露工人之间的差异分别为-2.3（-4.3至-0.3）（CI = 95%）和-5.6（-10.4至-0.7）mL/（m²×年）。
与未暴露工人相比，硅铁/金属硅和碳化硅行业的生产线操作员的FEV1/身高年下降幅度更大。
