Table 3. Multivariate analysis of prognostic factors for the survival of patients with glioblastoma multiforme.

Variable	Hazard ratio (95% CI)	p-value
WHO performance status (0–2 vs 3–4)	0.634 (0.352–1.142)	0.129
EORTC-RPA Class (III–IV vs V)	0.544 (0.310–0.954)	0.034
Radiotherapy (high dose vs conventional dose)	0.495 (0.284–0.862)	0.013

CI, confidence interval; EORTC-RPA, European Organisation for Research and Treatment of Cancer recursive partitioning analysis; WHO, World Health Organization.