Table 2.

Univariate and multivariate survival analysis within Oral Cavity N0 and N+ subgroups.

Oral Cavity NO
			Univariate			Multivariate
	Reference	n	HR	Cl	P-Value	HR	Cl	P-Value
Gender	Female	119	0.98	(0.49,1.99)	0.96
Smoker	No	116	0.78	(0.38,1.59)	0.49
HPV Status	Positive	119	1.24	(0.3,5.17)	0.77
Radiation	Yes	114	1.94	(0.92,4.1)	0.082
T stage	1,2	119	2.3	(1.12,4.72)	0.023	2.77	(1.32,5.82)	0.0072
Overall Stage	I, II	118	2.48	(1.18,5.21)	0.017
Subtype	Non-Mesenchymal	119	1.83	(0.89,3.76)	0.099	2.4	(1.14,5.06)	0.021
Age	19-61	119	0.95	(0.48,1.88)	0.88
Oral Cavity N+
			Univariate			Multivariate
	Reference	n	HR	Cl	P-Value	HR	Cl	P-Value
Gender	Female	150	1.06	(0.61,1.84)	0.83
Smoker	No	146	2.09	(1.03,4.22)	0.041
HPV	Positive	150	1	(0.49,2.01)	0.99
Radiation	Yes	133	2.12	(1.25,3.6)	0.0053
T stage	1,2	150	2.33	(1.25,4.34)	0.008
Overall Stage	I, II	149	2.44	(1.17,5.11)	0.018
Subtype	Non-Mesenchymal	150	1.36	(0.84,2.21)	0.22	1.3	(0.79,2.14)	0.3
Age	19-61	150	1.3	(0.81,2.1)	0.28	1.24	(0.76,2.01)	0.39

HR, hazard ratio; CI, confidence interval.