Source of Support: None, Conflict of Interest: None
Peak expiratory flow rate of 880 Indian subjects (456 males and 424 females), fulfilling the criteria of normalcy, was determined for different age and height groups, using the Wright's peak flow meter. The values of correlation coefficient between PEFR and age and PEFR and height were calculated to find out regression line on age and height. Using the authors' own regression equation, the value of PEFR was calculated for a standard male and standard female, and this was compared with available data of other workers. It was concluded that the mean value of PEFR would be more or less equal in the persons of same height and age of the different continents.