Table 3. Univariate and multivariate analysis.

Univariate Analysis
Factor		Hazard ratio or Exp(B)	95.0% CI for Exp(B)		Sig.
			Lower	Upper
TP53 value	Positive	1			.265
	Negative	1.344	.798	2.262
AJCC_STAGE	I	.326	.148	.716	.003
	II	.361	.191	.684
	III	.560	.305	1.028
	IV	1
Final N stage	N0	.249	.105	.592	<0.001
	N1	.560	.221	1.417
	N2a	2.573	.494	13.385
Neck pathology	Negative	.584	.318	1.072	.003
	Positive	1.482	.799	2.747
Multivariate Analysis
		Adjusted hazard ratio Exp(B)	95.0% CI for Exp(B)		Sig.
			Lower	Upper
AJCC_STAGE					.003
	I	1.114	0.500	2.481
	II	1.823	0.837	3.972
	III	3.309	1.497	7.316
TP53 value	Positive	1.543	0.911	2.612	.107
	Negative	1