Fig. 4

Receiver operating characteristic curve analysis of various parameters to discriminate patients with severe community-acquired pneumonia from patients with community-acquired pneumonia. suPAR soluble urokinase-type plasminogen activator receptor, NLR neutrophil/lymphocyte ratio, WBC whole blood leukocyte count, CRP C-reactive protein, PCT procalcitonin, CURB-65 confusion, urea, respiratory rate, blood pressure, and age ≥65 years old score, PSI Pneumonia Severity Index Score, APACHE II Acute Physiology and Chronic Health Evaluation II score, AUC area under the curve