Normal standard for ventilatory function test in adult Filipinos

To establish reference values for lung function test in Filipinos, 283 (130 males and 153 females) normal non-smoking ( Multiple linear regressions with backward elimination was done. The data obtained was regressed against independent variables of age height, weight, and body surface area for each sex. Analysis of variance (ANOVA) of the regression equations for most parameters were significant at = 0.01. In a few parameters were significance was = 0.05. Only in Raw was the regression model not significant. The coefficient of determination (R) of our regression equations were low (