Table 3. Univariate and multivariate analyses for OS.

Variable	Univariate analysis	Multivariate Cox regression
	p-Value	HR	95% CI	p-Value
Age (years)	0.275	-	-	-
Gender	0.882	-	-	-
Primary tumor size	0.094	-		-
Histology	0.010	1.267	1.127–3.203	0.348
Primary tumor location	0.387	-	-	-
Lymph node metastasis	0.037	1.807	0.986-3.051	0.847
Clinical stage	0.012	2.944	1.967-5.658	0.001
NR4A1 expression	0.025	2.813	1.641-4.303	0.017