ROC curves of the NLR, PLR, SII, SIRI, and HRR for predicting
death. (a) ROC curves of the NLR, PLR, SII, SIRI, and HRR for predicting
mortality. (b) ROC curves and the cut-off value of the NLR for predicting
mortality. (c) Kaplan–Meier survival curves of the lower-NLR and higher-NLR
groups (p
0.0001). (d) ROC curves and the cut-off value of the HRR
for predicting mortality. (e) Kaplan–Meier survival curves of the lower-NLR and
higher-NLR groups (p
0.0001). ROC, receiver operating characteristic
curve; AUC, the area under the receiver operating characteristic curve.