Hospitalization Outcomes of Patients with Asthma, COPD, and Asthma-COPD Overlap Syndrome.

Background And Objectives: Chronic obstructive pulmonary disease (COPD) and asthma account for a significant health care burden within the United States. The asthma-COPD overlap (ACO) phenotype has been associated with increased exacerbation frequency and health care utilization compared to either disease alone. However, hospital-based outcomes of these diagnoses have not been described in the literature.