Figure 3.Receiver operating characteristic (ROC) curve analysis to determine diagnostic relevance of APOE mRNA levels in GC patients. ROC curve analysis of APOE mRNA levels in the (A) Chen (AUC = 0.9477), (B) Cui (AUC = 0.7466), (C) Derric (AUC = 0.8141) and (D) Wang (AUC = 0.9333) Gastric datasets from the Oncomine database; (E) GSE29272 (AUC = 0.9270) and (F) GSE54129 (AUC = 0.9661) datasets from the GEO databases; and (G) STAD dataset (AUC = 0.7897) from the TCGA database; The receiver operating characteristic (ROC) curve analysis to determine diagnostic relevance of APOE mRNA levels in GC patients.