Table II.

Univariate and multivariate analysis of prognostic factors for OS and DFS in Dukes' stage B patients.

	Univariate analysis			Multivariate analysis
Variables	Regression coefficient	Hazard ratio (95% CI)	P-value	Regression coefficient	Hazard ratio (95% CI)	P-value
OS
Tumor size	0.349	1.417 (0.521–3.858)	0.488		(−)
Lymphatic invasion	0.674	1.962 (0.665–5.303)	0.209		(−)
Venous invasion	1.109	3.030 (1.054–10.846)	0.039a	1.017	2.765 (0.961–9.905)	0.060
Histological type	−0.235	0.791 (0.181–2.455)	0.708		(−)
Serum CEA	0.744	2.105 (0.768–5.777)	0.145		(−)
Serum CA19-9	0.588	1.800 (0.394–6.235)	0.409		(−)
CEA/CK/CD133	2.347	10.456 (2.119–189.993)	0.001a	2.284	9.819 (1.987–177.568)	0.002a
DFS
Tumor size	0.053	1.055 (0.479–2.286)	0.892		(−)
Lymphatic invasion	0.570	1.768 (0.775–3.844)	0.169		(−)
Venous invasion	0.840	2.316 (1.040–5.645)	0.040a	0.619	1.857 (0.824–4.569)	0.139
Histological type	0.376	1.456 (0.597–3.242)	0.389		(−)
Serum CEA	0.798	2.222 (0.823–4.901)	0.064		(−)
Serum CA19-9	0.240	1.271 (0.360–3.546)	0.680		(−)
CEA/CK/CD133	1.150	3.158 (1.286–9.462)	0.011a	1.282	3.602 (1.454–10.863)	0.005a

^aP<0.05.