Table.2.

Uni-and multivariate analyses of factors predicting overall survival

Variable	Univariate analysis			Multivariate analysis
	OR	95 %CI	P	OR	95 %CI	P
Age	2.189	1.109–4.323	0.031	1.785	0.983–4.843	0.12
Gender	0.572	0.298–1.095	0.092
Tumor depth	1.37	0.701–2.695	0.354
LN metastasis	4.412	2.128–9.148	< 0.001	4.301	1.612–11.483	0.002
TNM staging	1.88	1.442–2.451	0.001	1.003	0.386–2.806	< 0.001
Surgery method	1.09	0.552–2.132	0.809
Differentiation degree	0.647	0.408–1.025	0.064	1.247	0.752–1.793	0.127
Platelet counts	0.971	0.826–1.279	0.046
Pathology	0.959	0.339–2.708	0.937
Jaundice	1.529	0.773–3.026	0.222
Cholelithiasis	1.501	0.790–2.850	0.215
Tumour location	1.623	0.931–2.331	0.321
Liver Invasion	2.648	1.370–5.117	0.004	2.321	1.172–4.875	0.023
Choledoch Invasion	3.053	1.498–6.224	0.002	2.765	1.287–5.769	0.001
Diabetes	0.887	0.347–2.269	0.802
Hypertension	0.92	0.448–1.889	0.82
Smoking	2.02	1.493–3.111	0.112
Fibrinogenlevels	1.493	0.792–1.787	0.008	1.012	0.682–1.876	< 0.001