Table 4. Predictors of unfavorable outcome.

Variables	Unfavorable outcome
	Univariate
	HR	p value	95% CI
Age >70 y		0.9963
Male gender	2.33	0.4304	0.24~19.82
Middle fossa location	0.67	0.6931	0.07~4.99
Posterior fossa location	1.50	0.6931	0.20~13.56
Peritumoral edema		0.9953
Central necrosis	4.25	0.3410	0.15~124.90
Total marginal dose ≥18 Gy		0.9963
Tumor volume ≥20 cm3	1.33	0.7822	0.15~10.36