Fig. 3

Diagnostic value of single and combined inflammation markers ratios in early-stage PC. A The ROC curve analysis of FAR, FPR, NLR, PLR, MLR, FLR, PNI, and CA199 between PC and HC in the training set. B The ROC curve analysis of combined inflammation markers ratios and CA199 in PC and HC in the training set. C The ROC curve analysis of FAR, FPR, NLR, PLR, MLR, FLR, PNI, and CA199 between PC and OPT in the training set. D The ROC curve analysis of combined inflammation indicator and CA199 between PC and OPT in the training set. E The ROC curve analysis of FAR, FPR, MLR, FLR, PNI, and CA199 between PC and HC in testing set 1. F The ROC curve analysis of combined inflammation markers ratios and CA199 between PC and HC in testing set 1. G The ROC curve analysis of FAR, FPR, FLR, and CA199 between PC and OPT in testing set 1. H The ROC curve analysis of combined inflammation markers ratios and CA199 between PC and OPT in testing set 1. Abbreviations: PC, pancreatic cancer; OPT, other pancreas tumors; HC, healthy controls; FAR, fibrinogen-to-albumin ratio; FPR, fibrinogen-to-prealbumin ratio; NLR, neutrophil-to-lymphocyte ratio; PLR, platelets-to-lymphocyte ratio; MLR monocytes-to-lymphocyte ratio; PNI, albumin + 5 × the lymphocyte count; FLR, fibrinogen-to- lymphocyte ratio; ROC, receiver operating characteristic