Table 3. Univariate and multivariate analysis of prognostic variables for 5-year OS.

Variables	OS
	Univariate (P)	Multivariate
		HR (95% CI)	P
Age	0.579	1.000 (0.949–1.054)	0.997
Gender	0.153	0.727 (0.304–1.738)	0.474
Pathological morphology	0.351	0.892 (0.651–1.222)	0.476
Pathological grading	0.265	1.199 (0.735–1.956)	0.467
T stage	0.167	1.635 (0.543–4.918)	0.382
N stage	0	1.869 (1.127–3.100)	0.015
M stage	0.029	1.130 (0.301–4.244)	0.856

OS, overall survival; HR, hazard ratio; CI, confidence interval.