Research Paper Volume 15, Issue 20 pp 11331—11368

Figure 4. The time AUC curve of the high and low expression groups of Key genes in TCGA-PAAD. The AUC of ABCB1 (A) is less than 0.5 over time, which indicates they were protective factors, and the closer the AUC value is to 0, the better the prediction performance. The AUC of CAP1 (B), EGFR (C), ITGB1 (D), MAPK1 (E), and PPARG (F) are all over than 0.5 over time, which indicates they were risk factors, and the closer the AUC value is to 1, the better the prediction performance. The AUC of SNCA (G) is also less than 0.5 over time. The X-axis represents time, and Y-axis represents the AUC value. TCGA, The cancer genome atlas; AUC, Area Under Curve.