Figure 2.

Overall survival in GBM (single institutional experience). Overall survival of patients treated (at least with concurrent chemo irradiation) with glioblastoma at our institution. The polynomial trend line shows three peaks. The first represents patients with poor prognosis—their median overall survival (OS poor) do not differ significantly from those who were treated only with radiotherapy (RT only) prior to Stupp era. The second and third peaks represent patients with a favorable prognosis. OS: Median overall survival of all examined patients.