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ROC curves of PNI and AGR values prior to immunotherapy. PNI: area under the curve, 0.699; P<0.001; cut-off value, 47.18; sensitivity, 0.603; specificity, 0.764. AGR: area under the curve, 0.696; P<0.001; cut-off value, 1.29; sensitivity, 0.853; specificity, 0.496. Diagonal segments in the curves are produced by ties. ROC, receiver operating characteristic; PNI, prognostic nutritional index; AGR, albumin-globulin ratio.
