Fig. 3

Receive operating characteristic (ROC) curve for predicting 28-day mortality in septic shock patients. AUCs: the percentage of PD-L1 on monocytes (dark blue line), 0.729; MFI of PD-L1 on monocytes (green line), 0.681; SAPS II (pink line), 0.768; SOFA score (brown line), 0.736; the percentage of PD-L1 on monocytes in combination with SAPS II (C1, red line), 0.891; MFI of PD-L1 on monocytes in combination with SAPS II (C2, yellow line), 0.881; the percentage of PD-L1 on monocytes in combination with SOFA score (C3, pale blue line), 0.829; and MFI of PD-L1 on monocytes in combination with SOFA score (C4, gray line), 0.799. MFI mean of fluorescence intensities, PD-L1 programmed cell death receptor ligand-1, SAPS II simplified acute physiology score II, SOFA sepsis-related organ failure assessment