
Keywords: محدودیت جریان هوا; Cardiovascular prognosis; Airflow limitation; COPD; Diastolic function; Hypoxemia; Outpatients; BMI; Body Mass Index; BNP; type-B Natriuretic Peptide; COPD; Chronic Obstructive Pulmonary Disease; DLCO; Carbon monOxide Lung Diffusing capacity corrected for