YAP1 and neoplasm: Additionally, the level of YAP1 level was positively correlated with the N stage (Fig. 5I, N1 vs N0, p < 0.05), G histologic stage (Fig. 5J, G3 vs G1, p < 0.05), and R residual tumor state (Fig. 5K, R1 vs R0, p < 0.05).