Background:Limited data is available on the clinical expression of chronic obstructive pulmonary disease (COPD) from India. The impact of gender on expression of COPD has received even less attention. Apart from tobacco smoke, indoor air pollution, especially from biomass fuel may play an important role in development of COPD in women.Materials and Methods:Seven hundred and two patients of COPD were studied regarding the etiological and risk factors leading to COPD, gender-related differences in clinical presentation, radiological expression of COPD and the co-morbidities in COPD.Results:Tobacco smoke in the form of beedi smoking was the predominant smoke exposure in males, whereas smoke from biofuel burning was the predominant exposure in females. As compared to males, females were younger, reported more dyspnea, more severe bronchial obstruction, more exacerbations, and exhibited higher prevalence of systemic features. Also, females smoked less and had lesser incidence of productive cough, lower body mass index, lesser co-morbidities and less number of hospital admissions as compared to males. Males were more likely than females to have an emphysema-predominant phenotype, while airway-predominant disease was more common among females.Conclusion:The current study shows that gender-related differences do exist in COPD patients. Understanding these differences in etiological agent and clinical picture will help early diagnosis of COPD in females.

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