Table 5.

Mutivariate Analysis: Node-positive Only

Variables	p valuea (Multivariate)	HR	95% CI
Depth of invasion
T0		1
T1	0.544	0.82	0.31–1.75
T2	0.679	1.23	0.74–1.81
T3	0.313	1.49	0.99–2.21
T4	0.202	1.83	1.39–3.24
Stage
I–II	0.010	1
III–IV		1.59	0.82–3.06
No. of nodes
1		1
2–3	0.049	1.56	1.21–2.35
>3	0.007	2.06	1.51–2.82
Residual tumor
R0	0.283	1
R1		1.22	0.80–1.79

^aCox regression

HR = hazard ratio, CI = 95% confidence intervals