Abstract
Background: Pulmonary function test is a routine procedure for the assessment and evaluation of respiratory disorders. Aims and objectives: To know the variations in the values of the forced vital capacity (FVC) , peak expiratory flow rate (PEFR), forced expiratory volume in the first second (FEV1), and FEV1/FVC percentage among smokers and non-smokers. Methods: A cross-sectional study was conducted at Kathmandu Medical College, Nepal. Two hundred and twenty healthy male smokers and non-smokers were included in the study. Data from 220 male subjects (110 smokers and 110 non-smokers) were taken and analyzed. Results: Mean FVC, FEF25-75, FEV1, FEV1/FVC% and PEFR were found to be significantly lower in smokers than the non-smokers; there were significant differences between mean PFT values among smokers and non-smokers (P < 0.05). Conclusion: The mean FVC, FEV1 and PEFR were lower in smokers. Health awareness and educational campaigns are needed to keep the society to avoid smoking and to reduce respiratory diseases.
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