BACKGROUND Smoking in India has been known since at least 2000 BC when cannabis was smoked and is first mentioned in the Atharvaveda, which dates back a few hundred years BC. Chronic Obstructive Pulmonary Disease (COPD) has been recognised as one of the most important causes of morbidity and mortality in chronic tobacco smokers all over the world. Cigarette smoking produces inflammatory changes in small airways, especially in respiratory bronchioles. This leads to dilatation and destruction of small airways, characterised as emphysema. The pulmonary damage induced by smoking acts slowly and may show no symptoms until pulmonary functions are lost. In present study, the pulmonary function test of smokers were compared with non-smokers, the people of Northern Bihar (Koshi region), Bihar.
MATERIALS AND METHODSThe study design is a descriptive comparative study of Lord Buddha Hospital (Central Hospital) and Associated Hospital, Lord Buddha Koshi Medical College, a tertiary care centre in Koshi Region (Northern Bihar) from January 2015 to November 2016. In the study 120 healthy male subjects, 60 smokers and 60 non-smokers were assessed for their pulmonary function test by using a computerised spirometer.
RESULTSIn the present study, bidi smoking was most common (58.33%) followed by both cigarette and bidi smoking (25.0%) and only cigarette smoking (16.67%) in smokers. The distribution of grade of smoking is shown in Table 3. Light smokers were commonest (75.00%), followed by moderate (21.67%) and heavy smokers (03.33%). Most of the smokers were in the age group of 40 -49 years (50.0%). Majority of light smokers (53.33%) were in the age group of 40 -49 years, moderate smokers (46.16%) in 50 -60 years and heavy smokers (50.0%) in 50 -60 years.
CONCLUSIONTobacco smoking in any form, bidi or cigarette or both has significantly deleterious effects on the pulmonary functions. In this rural study area, bidi smoking was most common. Almost all the pulmonary function parameters were significantly reduced in smokers and obstructive pulmonary impairment was commonest.