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Table 1 The summary of the materials analysed in this study

From: The comparison of clinical and biological characteristics between IDH1 and IDH2 mutations in gliomas

Pathological diagnosis WHO grade n = 811 IDH1 mutation No. (%) IDH2 mutation No. (%) IDH mutation total No. (%)
Diffuse astrocytoma II 193 138 (71.5) 2 (1.0) 140 (72.5)
Anaplastic astrocytoma III 39 14 (35.9) 0 (0) 14 (35.9)
Oligodendroglioma II 49 38 (77.6) 3 (6.1) 41 (83.7)
Anaplastic oligodendroglioma III 27 19 (70.4) 1 (3.7) 20 (74.1)
Oligoastrocytoma II 186 147 (79.0) 9 (4.8) 156 (83.8)
Anaplastic oligoastrocytoma III 83 47 (56.6) 1 (1.2) 48 (57.8)
Subtotal (grades II and III)   577 403 (69.8) 16 (2.8) 419 (72.6)
Primary GBM IV 205 29 (14.1) 1 (0.5) 30 (14.6)
Secondary GBM IV 29 16 (55.2) 1 (3.4) 17 (58.6)
Subtotal (Glioblastoma) IV 234 45 (19.2) 2 (0.9) 47 (20.1)
Total   811 448 (55.2) 18 (2.2) 466 (57.4)