Table 2.

Univariate and multivariate analyses of factors in relation to overall survival using the cox proportional hazards model (n = 111).

Variables	Univariate analyses			Multivariate analyses
	HR	95% CI	p-value	HR	95% CI	p-value
Age (>50 vs. <50)	0.715	0.291–1.755	0.427	0.833	0.345–2.012	0.685
Frontal lobe invasion (No vs. Yes)	0.888	0.379–2.085	0.780	1.100	0.437–2.772	0.840
Cervical LN (N0 vs. N+)	0.309	0.109–0.877	0.002	0.231	0.094–0.567	0.001
Surgery (No vs. Yes)	0.202	0.072–0.5637	0.000	0.215	0.092–0.503	0.000
Chemotherapy (No vs. Yes)	1.304	0.487–3.495	0.567	1.298	0.453–3.717	0.627
Orbital invasion (No vs. Yes)	0.440	0.202–0.960	0.035	0.586	0.244–1.406	0.231