BANF1 and gastric cancer: Stratification of patients with GC based on this cutoff value revealed significantly higher RFS and a trend toward higher OS in patients with a low BAF index than in those with a high BAF index (5-year RFS rate: 91.3% vs. 66.5%; P = 0.044, 5-year OS rate: 84.2% vs. 64.9%; P = 0.19) (Fig. S4b).