The random effect model (I2 = 0.0%, P = 0.518) was used, and the pooled results indicated that the CXCR4 overexpression in DLBCL patients was related to poorer OS (HR = 1.22, 95% CI: 1.10 to 1.35, P < 0.001) (Figure 1(b)). Here, CXCR4 is linked to diffuse large B-cell lymphoma.