Table 2.

Multivariate analysis to identify the clinical prognostic factors for patient survival

Variables	OR	95%CI	P
Step (single vs two)	0.81	0.49-1.36	0.42
Gender (male vs female)	1.05	0.66-1.67	0.83
Age (69 ≥ vs 70 < )	1.02	0.59-1.76	0.96
Pancratic cancer (yes vs no)	1.01	0.21-1.61	0.98
Clinical stage (IVa ≥ vs IVb)	2.03	1.23-3.34	0.006
Chemotherapy (with vs without)	2.18	1.27-3.76	0.005
Patency of the stent (no vs yes)	2.21	1.20-4.07	0.011