Table 1.

IDH1 mutation incidence in tumor subtypes.^{4,5,14,16,18,21,25,26,29,32,35,36}

Tumor Type	Mutations (%) and median (range)	Number of mutations/total number of tumors
Diffuse Astroctyoma	74% (0–88%)	307/407
Anaplastic Astrocytoma	59% (0–78%)	294/457
Secondary GBM	83% (50–100%)	94/121
Oligodendroglioma	76% (67–84%)	283/366
Anaplastic Oligodendroglioma	67% (49–94%)	237/355
Oligoastrocytoma	80% (50–100%)	153/196
Anaplastic Oligoastrocytoma	75% (63–94%)	245/345
Ganglioglioma	37.5%	3/8
Anaplastic Ganglioglioma	60%	3/5
Sporadic Paraganglioma	2%	1/66
Primitive Neuroectodermal Tumor	17% (0–33%)	3/17
Acute Myelogenous Leukemia	1% (0–9%)	21/389