Then, we found five high-risk variables of recurrence for GC with high expression of ERBB2: age (HR = 1.05011), pN stage (HR = 1.41825), and pM stage (HR = 2.76747), and the C-index of the nomogram model was 0.681, p < 0.001 (Supplementary Figures 3, 4). Here, ERBB2 is linked to gastric cancer.