In ITGB1‐positive cases, accumulation of β‐catenin in nucleus/cytoplasm was observed in 33.9% diffuse‐type cases (20/59) and 25.5% intestinal‐type cases (36/141), while in 20.0% cases of ITGB1‐negative diffuse‐type GC (17/85) and 18.4% cases of ITGB1‐negative intestinal‐type GC (7/38) (p = 0.061, p = 0.362, respectively, Table 2). This evidence concerns the gene ITGB1 and gastric cancer.