Table 3.

Multivariate analysis for overall survival, disease-specific survival, disease-free survival, and local control.

	Overall survival	Disease-free survival	Disease-specific survival	Local control
Stage	NS	NS	NS	NS
Anterior commissure infiltrations	<0.001	0.001	0.01	<0.001
Radiotherapy techniques	NS	NS	NS	NS
Beam energy	NS	NS	NS	NS

NS: not significant.