Table 2.

Predictive factors for overall survival in surgical cases.

	Univariate		Multivariate
Parameter    (Unfavorable vs. Favorable)	HR (95% CI)	p-Value	HR (95% CI)	p-Value
Pathological T-factor	2.68	0.168
(T3,4 vs. T1,2)	(0.85–16.30)
Pathological N-factor	2.69	0.0010	3.24	0.0012
(Positive vs. Negative)	(1.44–5.57)		(1.54–7.79)
Lymphatic permeation	2.43	0.0106	1.029	0.948
(Positive vs. Negative)	(1.21–5.81)		(0.409–2.23)
Residual tumor	1.96	0.0147	1.69	0.0724
(R1 > R0)	(1.15–3.18)		(0.95–2.87)
Completed adjuvant chemotherapy	2.54	<0.0001	2.88	<0.0001
(No > Yes)	(1.62–4.07)		(1.81–4.66)
Resectability	1.12	0.622
(BR + UR vs. R)	(0.693–1.761)

HR: Hazard ratio, R: resectable, BR: borderline resectable, UR: unresectable.