Distribution of patients with high (⁠|$\ge$|80) and low (⁠|$\le$|70) Karnofsky performance status (KPS) scores and with total and not total resection in the neurosurgeon and non-neurosurgeon groups. (A) The percentage of patients with high preoperative KPS scores (⁠|$\ge$|80) was 72.5% (n = 79) in the neurosurgeon group and 55.7% (n = 34) in the non-neurosurgeon group (P = 0.027) (B) The percentage of patients with total tumor resection was 37.6% (n = 41) in the neurosurgeon group and 21.3% (n = 13) in the non-neurosurgeon group (P = 0.029).