Table 6.

Multivariate Cox regresison analysis for OS

Variable	HR (95% CI)	p Value
Age	1.02(1.01–1.04)	0.015
Midline Structures Involvement	4.23(2.04–8.76)	< 0.001
RTV	1.12(1.04–1.22)	0.005
MGMT	2.07(1.29–3.32)	0.002
Ki67	3.16(1.55–6.44)	0.002
Duration of symptoms	1.02(0.99–1.05)	0.156
Gender	0.64(0.41–1.02)	0.058