This was also described in our study with male patient predominance (male: female = 1.26: 1), the youngest mean age was in glioma grade I (14.71 years old) while the highest mean age was in grade IV (46.50 years old) and the most common diagnosis was Glioblastoma, IDH-wildtype, (31.13%). This evidence concerns the gene IDH1 and glioma.