Table 3.

Multivariate analysis by prognostic factors

Variable	Factor	HR (95% CI)	P-value
Overall survival
H-grade	Low & intermediate vs. high	18.148 (2.397−137.279)	0.005
Disease-free survival
T-stage	T1−2 vs. T3−4	3.628 (1.383−9.514)	0.009
D-grade	G1−2 vs. G3	3.460 (1.373−8.722)	0.009
Locoregional control
T-stage	T1−2 vs. T3−4	8.189 (1.798−37.302)	0.007
Distant control
LVI	No vs. yes	19.179 (1.513−243.153)	0.023

HR, hazard ratio; CI, confidential interval; H, histologic; D, differentiation; LVI, lymphovascular invasion.