Table 3.

Cox regression model for risk factors predicting OS.

Variable	Number of patients	Dead (%)	Univariate Analysis		Multivariate Analysis
			HR (95% CI)	P value	HR (95% CI)	P value
Overall	29	11 (37.9%)
Sex
Male	16	7 (43.8%)	Reference
Female	13	4 (30.8%)	0.579 (0.168-1.997)	0.387
Age (years)
<40	13	4 (30.8%)	Reference
≥40	16	7 (43.8%)	1.732 (0.504-5.956)	0.383
Location
Lateral ventricle	16	6 (37.5%)	Reference
Others	13	6 (46.2%)	1.067 (0.341-3.340)	0.911
Extent of resection
GTR	19	4 (21.1%)	Reference		Reference
Non-GTR	10	7 (70%)	4.611 (1.342-15.839)	0.015*	5.262 (1.350-20.516)	0.017*
RT
Yes	26	10 (38.5%)	Reference		Reference
No	3	1 (33.3%)	0.961 (0.118-7.818)	0.970	2.011 (0.179-22.524)	0.571
CT
Yes	15	6 (40%)	Reference		Reference
No	14	5 (35.7%)	1.328 (0.399-4.414)	0.644	1.219 (0.337-4.412)	0.762

*: p<0.05 was considered statistical significant.