Comorbid pulmonary disease and risk of community-acquired pneumonia in COPD patients.

Abstract Risk of pneumonia in chronic obstructive pulmonary disease (COPD) patients due to comorbid pulmonary disease is not well understood. To compare factors associated with risk of community-acquired pneumonia (CAP) in COPD patients for those with and without lung cancer, bronchiectasis and/or history of active tuberculosis. Retrospective chart review of patients diagnosed with COPD (forced expiratory volume in 1 second/forced vital capacity