When the unadjusted hazard ratio (HR) was set to 1.0 (as reference) in CD147 negative (−) staining group, patients with CD147 positive gastric cancer had a 1.63-fold higher risk of relapse compared to those with CD147 negative gastric cancer (95% CI: 1.13–2.36; P = 0.009). This evidence concerns the gene BSG and gastric cancer.