Table 2.

Clinical characteristics of glioblastoma patients in the TCGA database.

Characteristics	Total Patients (N = 594)
	N	%
Age (years)
<60 years	307	51.68
≥60 years	287	48.32
Gender
Female	230	38.72
Male	364	61.28
Grade
I	0	0.00
II	0	0.00
III	0	0.00
IV	594	100.00
Survival status
Alive	144	24.24
Dead	450	75.76
P/R
Primary	543	91.41
Recurrent	20	3.37
Unknown	31	5.22