Chronic obstructive pulmonary disease (COPD) is a disease of the respiratory tract that is characterized narrowing of the small airways and destruction of lung tissue. This leads to poor airflow ...

As far as we know, PREPOCOL is the first probabilistic population study done in Colombia and the second in Latin America [15] that use a spirometric definition (postbronchodilator FEV 1 /FVC < 70% ...