儿童少年肺活量肺通气量与形态指标的相关分析

Correlation Analysis Between Vital Capacity,Pulmonary Ventilation and Morphological Parameters Among Children

目的了解儿童少年肺活量、肺通气量与形态发育指标的相互关系,为儿童生长发育研究提供依据。方法对大庆市7～18岁中小学生肺活量、肺通气量与年龄、身高、体重、胸围、坐高进行多元相关及逐步回归分析。结果肺活量与年龄及4项形态指标的相关系数男生为0.81～0.93,女生为0.70～0.90;肺通气量与年龄及4项形态指标的相关系数男生为0.64～0.93,女生为0.64～0.90。以肺活量为应变量,身高、胸围和坐高被引入模型,模型标化相关系数男生为0.903,女生为0.802;以肺通气量为应变量,年龄、体重被引入模型,模型标化相关系数男生为0.736,女生为0.748。结论由身高、胸围和坐高建立的模型和由年龄、体重建立的模型,可分别准确地推测7～18岁学生肺活量、肺通气量。

Objective To explore the relations between vital capacity, pulmonary ventilation and morphological parameters. Methods The relations between vital capacity pulmonary ventilation and age, height, body weight chest circumference and sitting height were analyzed with multiple correlation and stepwise regression with SPSS. Results The coefficients of correlation between vital capacity and age, height, body weight, chest circumference and sitting height were 0.81 - 0.93 in boys and 0.70 - 0.90 in girls and the coefficients of correlation between pulmonary ventilation and the parameters were 0.64 - 0.93 in boys and 0.64 - 0.90 in girls. In the multiple regression model vital capacity as dependent variable, height, chest circumference and sitting height were sent into the model, standardized coefficient of the mode was 0.903 in boys and 0.802 in girls; pulmonary ventilation as dependent variable, age and body weight were entered as predictors, standardized coefficient of the mode was 0. 736 in boys and 0. 748 in girls. Conclusion Vital capacity can be well predicted with the model of height, chest circumference and sitting-height and the model of age and weight among the children aged 7 - 18.