Profile of respiratory problems in patients presenting to a referral pulmonary clinic.

Analysis of OPD data of 2012 patients in a referral pulmonary clinic at Kolkata was done following a protocol-based approach. Obstructive airway diseases (COPD and asthma) were the most common (43%) problem followed by infective lung diseases (15%) including tuberculosis, bronchogenic carcinoma (8%), ILD (4%), haemopty-sis of undiagnosed etiology (4.5%), chronic cough of undiagnosed etiology (6.