Abstract
Background: Smoking causes deterioration in lung functions and spirometry can be helpful to diagnose it early. Smoking is a major risk factor associated with the development of COPD which can be prevented by cessation of smoking. The purpose of the study was to know, whether there was any difference in the spirometry parameters in smokers, ex-smokers, and non-smokers. Objective: To Compare spirometric parameters i.e FEV1, FVC, FEV1/FVC ratio, and PEFR in smokers, non-smokers & ex-smokers.Methods: An observational, cross-sectional study was conducted on 322 Software Engineers. Institutional ethics committee approval was obtained before the study. Spirometry (Computerized Spirometer Helios 401) or recording lung parameters was done on individuals who were willing to participate and met the inclusion criteria. Results: Our study showed that the spirometry parameters FEV1, FVC & FEV1/FVC ratio was lower in smokers as compared to non-smokers & ex-smokers. There was significant difference in spirometry parameters in the three groups FVC (p < 0.001), FEV1 (p < 0.001), FEV1/FVC (p < 0.001), FEF25-75 (p < 0.01) and PEFR (p < 0.01). Conclusion: The present study showed spirometry parameters in smokers were significantly lower than in non-smokers.
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