CD4 and lymphoma: As shown in Table 2, the univariate analysis identified that the lymphoma and HIV-related parameters, including LDH, ECOG PS, Ann Arbor stage, bulky mass, B symptoms, IPI, aaIPI, NCCN-IPI, CD4 T-cell count, erythrocyte sedimentation rate (ESR), and albumin (ALB), had a significant impact on OS (all P < 0.05).