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对238名从事铸造生产的接尘女工和325名对照女工进行了肺功能检测和呼吸系统症状与慢性支气管炎患病情况的流行病学调查。结果表明:接尘女工的FVC、FEV1、FEF25-75等肺功能指标以及最大呼气流量容积曲线(MEFVC)的各参数,均较对照组明显降低;肺功能异常率、呼吸系统症状阳性率与慢性支气管炎患病率则明显高于对照女工,统计学意义均显著。进一步分析表明,随着接尘工龄的延长,肺通气功能的损害越加严重。
An epidemiological survey of lung function tests and respiratory symptoms and the prevalence of chronic bronchitis was conducted on 238 female workers engaged in the foundry industry and 325 female workers in the control group. The results showed that the parameters of pulmonary function index and maximum expiratory flow volume curve (MEFVC) such as FVC, FEV1, FEF25-75 of female workers exposed to dust were significantly lower than those of the control group; the positive rates of pulmonary function abnormalities, respiratory symptoms and The prevalence of chronic bronchitis was significantly higher than the control women, statistical significance were significant. Further analysis shows that with the extension of the service life of dust, the damage of pulmonary ventilation function is more serious.