Table 3.

Univariate analysis for local recurrence-free, progression-free, and overall survival (NS: not significant).

Variables	LRFS	PFS	OS
Age	NS	NS	NS
Tumor size	NS	NS	NS
Grade	NS	NS	NS
Stage	NS	NS	NS
Karnofsky performance status	p = 0.002	p = 0.0007	NS
Tumor location	NS	NS	NS
Chemotherapy	NS	NS	NS
Timing of RT	p = 0.06	p = 0.01	NS