Fig 3. Cumulative percentage of hospitalized pneumonia patients and matched comparison patients who experienced an HF/COPD-related exacerbation, by comorbidity profile*.

CAP: Community-acquired pneumonia; COPD: chronic obstructive pulmonary disease; HF: heart failure. Exacerbation: Hospitalization with principal diagnosis of condition of interest, or emergency department visit with diagnosis of condition of interest in any position. *Patients identified between 1/2010 and 5/2013 within Truven Health Analytics MarketScan Commercial Claims and Encounters and Medicare Supplemental and Coordination of Benefits Databases. †Follow-up began 30 days after CAP diagnosis and ended 12 months later. ‡All comparisons p<0.001.