Table 3.

Univariate Analysis for the Effect of Different Risk Factors on Overall Survival

Covariate	Hazard ratio	P value
Intratumoral lymphatics*	6.133	0.0180
Lymphatic Vascular† Area (%)	1.555	0.0028
Vascular Invasion*	4.511	0.0619
Ulceration*	1.986	0.2607
Microsatellites*	NA	NS
Peritumoral inflammation†	0.570	0.1763
Site*	0.935	0.8697
Regression*	0.994	0.9933
Mitoses (>6/mm2)*	0.696	0.5414

NA, not applicable; NS, not significant.

* Dichotomous variable.

^† Continuous variable.