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.