A Study to Compare Spirometric Observations in Smokers and Non Smokers in Age Group between 25-55 Years

In India, smoking is a common habit prevalent in both urban and rural areas irrespective of mode of smoking i.e beedis, cigarettes, cigars etc. Tobacco smoke contains 400 chemicals out of which 60 are known carcinogens, which can lead to lung cancer. Smoking leads to rapid decline in pulmonary function test. Cigarette smokers have a high annual rate of decline in FEV1 of about 50ml, which is nearly double the average value in non smokers.