To investigate the influence of variables on PFS, we performed univariate analysis with Cox’s proportional hazards model for age (≥ 60 versus < 60 years), sex, primary/recurrent, WHO grade (I versus II and III), EOR (GTR versus STR), tumor location (skull base versus non-skull base), PTBE (with PTBE versus without PTBE), absolute neutrophil count (continuous variable), lymphocytopenia (present versus not present), NLR (≥ 2.6 versus < 2.6), LMR (≤ 5.3 versus > 5.3), PLR (≥ 140 versus < 140), and Ki-67 LI (≥ 3.0 versus < 3.0; Table 3). Here, MKI67 is linked to neoplasm.