Table 4.

Multivariate analysis for overall survival.

Variable	Hazard Ratio	95% Confidence Interval	p
TNM	2.04	1.85–2.26	<0.001
Lymphovascular invasion	1.54	1.28–1.86	<0.001
Poorly differentiated	1.29	0.95–1.75	0.106
Mucinous histology	1.19	0.93–1.53	0.166
Age classification	1.46	1.35–1.58	<0.001