Peak expiratory flow rate; the effect of smoking on younger & middle aged males

B. Satyanarayana, V. Devendar Reddy, E. Syamala


A total of 80 male subjects in age group of 20-50 years were selected for the purpose of the study. They were divided in two groups, smokers and non smokers. Each group subdivided into age groups of 20-35 and 36-50 yrs. The criteria for smoking was about 5-10 cigarettes per day since 6-12 months. Peak Expiratory Flow Rate (P.E.F.R.) was determined by using Wright’s peak flow meter. The results showed that in Non-Smoker of age group 20-35 years, (n= 30) the mean PEFR value was 535±50 L/min, whereas in age group 36-50 years, (n=15) the mean P.E.F.R value was 515±50 L/min. In Smokers of age group 20-35 years, (n=10) mean P.E.F.R. value was 374±128 L/min whereas in age group 36-50 years, (n=25) mean P.E.F.R. value was 357±86 L/min. This shows that in smokers P.E.F.R. value is lower compared to Non-smokers in both age groups and that P.E.F.R. is lower in the elder age group in comparison to younger age group.


P.E.F.R., Wright’s peak flow meter, Smokers

Full Text:



Wright BM. A miniature Wright peak-flow meter. Br Med J. 1978 Dec 9;2(6152):1627-8.

Chatterjee, et al. Sangyo ikadiagakuzaashi 1995 Sept 1;17(3):173-89.

Aggarwal AN, Gupta D, Chaganti S, Jindal SK. Diurnal variation in peak expiratory flow in healthy young adults. Indian J Chest Dis Allied Sci. 2000 Jan-Mar;42(1):15-9.

Zodpey SP, Tiwari RR. Peak expiratory flow rate in flour mill workers. Indian J Physiol Pharmacol. 1998 Oct;42(4):521-6.

Abdulrahman WF. Effect of smoking on peak expiratory flow rate in Tikrit University. Tikrit Medical Journal 2011;17(1):11-18.