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A comparative study of pulmonary function variables in young smokers in a tertiary care centre, north kerala, india.

Authors:*Dr. Manju C, Dr. Vijayalakshmi R, Dr. Binoo Divakaran
Int J Biol Med Res. 2016; 7(1): 5417-5420  |  PDF File

Abstract

Smoking has been indicated as one of the chief causes of respiratory diseases ranging from chronic obstructive pulmonary diseases to bronchial carcinoma. Spirometry has a pivotal role in screening, diagnosing and monitoring respiratory disease.The present study was undertaken to compare the pulmonary function variables between young asymptomatic smokers and non smokers (20-30 years). The study participants were selected randomly from healthy bystanders and students of Academy of Medical Sciences, Kannur, Kerala. The pulmonary function parameters Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), Peak Expiratory Flow Rate (PEFR) and Maximum Voluntary Ventilation (MVV) were measured using computerized spirometer. Smokers were healthy asymptomatic subjects who smoked more than or equal to 5 cigarettes/day. Nonsmokers were subjects who have not smoked even a single cigarette during life time. The mean ± standard deviation for test value in non-smokers (control group) for lung function parameters were FVC = 3.81 ± 0.59 L, FEV1 = 3.65 ± 0.59 L, PEFR = 8.99 ± 1.03L/s, MVV= 128.33 ± 8.81L/m ,whereas for smokers (study group) it was FVC = 3.38 ± 0.78 L, FEV1 = 3.10±0.66 L, PEFR = 8.05 ± 1.24L/s, MVV= 116.64 ± 14.89L/m.There was a significant difference between smokers and non-smokers for all the pulmonary function parameters and it was higher for non-smokers compared to smokers.