Table 3.

Multivariate analysis of LRFS

Variable	HR	95% CI	P-value
ypN			0.004
ypN stage N1 vs N0	3.602	0.401–32.309	0.252
ypN stage N2–3 vs N0	13.730	1.832–102.903	0.011
Histological grade 3 vs 1–2	4.598	1.808–11.693	0.001
LVI yes vs no	2.654	1.029–6.847	0.044

Abbreviations: LRFS, locoregional recurrence-free survival; LVI, lymph-vascular invasion.