BCL2 and diffuse large B-cell lymphoma: After PSM, the number of patients with ECOG scores of 2–4 was fewer in the HBV+ DLBCL group than in the HBV− DLBCL group (p = 0.033), but the number of patients with Bcl-2 ≥70% was greater in the HBV+ DLBCL group than in the HBV− DLBCL group (p = 0.042).