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Baseline demographics and illness severity
Values are presented as number (%) or median (25th-75th percentile).
*Initial arterial blood gas analysis was performed in 359 (74.3%) of the study patients.
HCAP: healthcare-associated pneumonia; CAP: community-acquired pneumonia; BMI: body mass index; BP: blood pressure; BUN: blood urea nitrogen; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; ICU: intensive care unit.
