本文报道用袖珍呼气峰速仪对400名正常健康儿童及60例患儿(支气管哮喘35例,肺炎25例)进行PEFR测定。结果显示,正常健康儿童PEFR与性别、年龄、身高、体重均呈相关关系。支气管哮喘患儿PEFR平均值明显低于正常儿童(P<0.001),实测值与预计值的百分比男性48%、女性44%,肺炎患儿PEFR平均值与正常儿童相比,无显著差异(P>0.05),实测值与预计位的百分比男性85.8%、女性90%。PEFR可用作通气功能障碍性疾病的诊断以及观察疗效的直接指标。 In this paper, PEFR was measured in 400 healthy children and 60 children (bronchial asthma in 35 cases, pneumonia in 25 cases) using the Pocket Vital Tachometer. The results showed that PEFR in normal and healthy children was related to gender, age, height and weight. The average PEFR in children with bronchial asthma was significantly lower than that in normal children (P <0.001). The percentages of the measured and predicted values ​​were 48% in males and 44% in females. There was no significant difference in PEFR between children with pneumonia and normal children (P > 0.05). The percentage of the measured value to the expected position was 85.8% for males and 90% for females. PEFR can be used as a diagnostic indicator of ventilatory dysfunction and a direct indicator of efficacy.