The significant association was also detected between CD151 overexpression and poor OS in patients with breast cancer (OS: pooled HR = 1.399, 95% CI =1.022-1.915, P=0.036) and gastric cancer (OS: pooled HR = 1.498, 95% CI =1.188-1.890, P=0.001). Here, CD151 is linked to gastric cancer.