Table 1.

Clinical characteristic

Clinical characteristics	Total (n = 1,052)
	CGGA (n = 536)	TCGA (n = 516)
Age
<45	371	267
≥45	164	190
N/A	1	59
Gender
Female	224	201
Male	312	256
N/A	0	59
IDH mutation status
Mutant	412	419
Wild-type	124	94
N/A	0	3
1p19q codeletion status
Codel	166	169
Noncodel	370	347
Grade
G2	254	216
G3	282	241
N/A	0	59