Fig. 2From: Correlation analysis between disease severity and inflammation-related parameters in patients with COVID-19: a retrospective studyROC curve of age and inflammatory parameters for critical illness of COVID-19. a age; b IL2R; c CRP; d ferroprotein; e WBC; f NC. IL2R, interleukin-2 receptor; CRP, C-reactive protein; WBC, white cell counts; NC, neutrophil count. AUC, 95% CI and P values are shown in the figureBack to article page