Chowgule R V, Shetye V M, Parmar J R
Department of Chest Medicine, Bombay Hospital Institute of Medical Science.
Indian Pediatr. 1995 Feb;32(2):185-91.
The forced vital capacity, forced expiratory volume in one second, peak expiratory flow, mid-expiratory flow and maximum voluntary ventilation was measured in 632 healthy, normal children from Metropolitan city of Bombay using computerized spirometer. The children were between age range 6 years to 15 years and belong to high or middle and lower socio economic status. The pulmonary function data was separated by sex, and classified on the basis of height and age. The mean and standard deviation for was calculated for every such variable. The lung function variables show a linear positive correlation with height and age. Forced vital capacity and one second forced expiratory volume show a spurt after height 150 cm. Boys show higher values for lung function variables than girls except for mid expiratory flow rates where girls have higher values than boys over height 140 cm and age 9 yrs. Stepwise regression equation was calculated using height, age and weight as independent variables. Height explained the maximum variance in lung function parameters. Use of logarithmic equations for age, weight do not improve the degree of correlation. Hence, for clinical evaluation of child's lung function, height is the most significant independent parameter in comparison to age and weight.
使用计算机化肺活量计，对来自孟买大都市的632名健康、正常的儿童测量了用力肺活量、一秒用力呼气量、呼气峰值流速、呼气中期流速和最大自主通气量。这些儿童年龄在6岁至15岁之间，属于高、中、低社会经济地位。肺功能数据按性别分开，并根据身高和年龄进行分类。对每个此类变量计算均值和标准差。肺功能变量与身高和年龄呈线性正相关。身高达到150厘米后，用力肺活量和一秒用力呼气量会出现突增。除了呼气中期流速外，男孩的肺功能变量值高于女孩，在身高超过140厘米且年龄大于9岁时，女孩的呼气中期流速值高于男孩。以身高、年龄和体重作为自变量计算逐步回归方程。身高解释了肺功能参数的最大方差。对年龄、体重使用对数方程并不能提高相关程度。因此，对于儿童肺功能的临床评估，与年龄和体重相比，身高是最显著的独立参数。
