Characteristics of patients with COPD who had <i>Pseudomonas aeruginosa</i> pneumonia and those patients with COPD with pneumonia non-caused by <i>P. aeruginosa</i>.

COPD, chronic obstructive pulmonary disease; IQR, interquartile range; PSI, pneumonia severity index. 1Data available only for 345 patients. 2Data available for 740 patients. 3Patients were stratified into the following risk classes according to the PSI score: low risk (≤90 points, classes I, II, and III) and high risk (>90 points, classes IV and V). Characteristics of patients with COPD who had Pseudomonas aeruginosa pneumonia and those patients with COPD with pneumonia non-caused by P. aeruginosa.