稻谷尘对退休粮工呼吸功能影响的调查

Effect of grain dust on the lung function of retired grain workers.

本文报道了130例退休粮工及373例无粉尘接触史的退休工人的呼吸道疾患及肺功能检查的结果,显示接触组的慢性呼吸道疾病症状和体征较对照组有显著意义的升高。肺功能的检查结果表明,接触组的FVC、FEV_1、PEF、V_(75)、V_(50)、V_(25)等指标较对照组有显著的下降,两组的差别有显著及极显著意义。对男粮工与对照组进行了肺功能与接尘、吸烟两因素方差分析,结果表明粉尘和吸烟对V_(50)、V_(250及FEF_(25～75)三项指标有显著的交互作用,即吸烟可以加重粉尘对工人肺功能的影响。

130 retired workers having history of exposure to grain dust in grain processing factory(106 males, 24 females) were studied. 373 workers without dust exposure history were chosen as control. It showed that the prevalence of chronic respiratory symptoms and signs was significantly higher in the exposed group than that of the controls. The adverse effect of grain dust exposure on lung function was shown by significant decrease of FVC, FEV_1, PEF, V_(75), V_(50) and V_(25) as compared with that of control. By two ways analysis of variance for lung function parameters, smoking and grain dust exposure, it showed that significant interaction V_(50), V_(25) and FEF_(25～75) existed in the males. Thus, smoking aggravated effect of grain dust on the lung function of the grain workers.