方法回顾性分析201例疑似哮喘患者支气管舒张试验的数据。
Methods The data of 201 suspicious asthmatic patients with normal pulmonary ventilation function examined by spirometry and bronchodilator reversibility testing were retrospectively analyzed.
结果：86例COPD患者中有11例支气管舒张试验阳性，阳性率为12 .8% ；
Results:12.8% (11/86) of the patients with COPD showed positive bronchodilation test.
结果 1。哮喘患者病程、吸烟指数与支气管舒张试验中FEV1改善率有线性回归关系；
Results There was a linear regression relationship between the course of the disease, smoking index of asthma patients and the improvement rate of FEV1.
结论：IOS技术适用于幼儿肺功能检测并可用于支气管舒张试验，是辅助诊断咳嗽变异性哮喘的检测指标之一。
Conclusion: IOS can reflect pulmonary function in children with cough variance asthma. IOS was the sensitive index for diagnosis children with CVA.
结论：IOS技术适用于幼儿肺功能检测并可用于支气管舒张试验，是辅助诊断咳嗽变异性哮喘的检测指标之一。
Conclusion: IOS can reflect pulmonary function in children with cough variance asthma. IOS was the sensitive index for diagnosis children with CVA.
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