Thus, a total number of 110 IDH-mutant tumors (103 astrocytomas grade III and 7 glioblastomas) were included (mean age 38.1 years, range 21-76; mean survival 32.1, range 0-139 months; dead/alive 24/86) (Supplementary Data, Table 2). Here, IDH1 is linked to astrocytoma (excluding glioblastoma).