IFITM2 and gastric cancer: Univariate regression analysis revealed that the factors affecting OS in patients with gastric cancer were age (p < 0.001), T stage (p = 0.004), N stage (p < 0.001), M stage (p < 0.001), histologic grade (p < 0.001) and IFITM2 expression level (p < 0.001; Table 3).