成都地区450例正常儿童呼气峰流速值测定

Detection of peak expiratory flow in 450 healthy children in Chengdu

目的建立成都地区5～14岁儿童呼气峰流速的参考值。方法以成都地区450例健康儿童为研究对象，采用美国伟康公司生产的580型呼气峰值流速测试仪测定呼气峰流速，分析其影响因素，采用SPSS14．0进行统计分析。结果男女儿童呼气峰流速与身高、年龄、体质量均有密切关系，与身高关系最密切，体质量对其影响最小。并且随身高、年龄的增加而增长。结论分别建立了男女儿童呼气峰流速与身高的直线回归方程。

Objective To establish reference values of peak expiratory flow （PEF） for children in Chengdu. Methods A total of 3 460 healthy children aged from 5 to 14 years were enrolled in this study. PEF was measured using Respironics Inc Peak FlOW Meter. Children＇s age, sex, height and weight were recorded. Impact factors for PEF were investigated by multiple stepwise regression analysis. Results PEF values increased with the increase of height, age, and weight and correlated significantly with height. The regression equation of PEF was obtained. Conclusions Males and females children PEF values can be calculated according to children＇s height.