STAT3 and diffuse large B-cell lymphoma: Meanwhile, patients with high STAT3 level in the entire cohort (PFS, P = 0.046, Figure 2A; OS, P = 0.002, Figure 2B) as well as in the non-GCB-DLBCL subgroup (P = 0.013, Figure 2C), but not in the GCB-DLBCL subgroup (P = 0.053, Figure 2D), had inferior survival compared with that of patients with low STAT3 level.