Table 1.

Multivariate analysis for overall survival in primary HNSCC patients with negative lymph node status.

Parameters	HR (95%CI)	p value
Age	1.458 (0.417–5.094)	0.555
Grade
I	1.000	1.000
II vs. I	8.202 (1.069–62.944)	0.043£
III vs. I	10.725 (1.186–96.971)	0.049£
Tumor size
T3+T4 vs. T1+T2	2.101 (0.735–6.000)	0.166
LAG-3 expression
High vs. low	4.160 (1.322–12.993)	0.014£

Note: Cox proportional hazards regression model.

HR: Hazard ratio; 95%CI: 95% confidence interval.

^£p < 0.05.