Table 1.

Patients characteristics

	Group A With ES	Group B w/o ES	Total
Patients	96	96	192
Median Age (± SD)	72 ± 6	75 ± 6	73 ± 7
Gender (M/F)	51/35	47/39	98/74
Bilirubine (mg/dL)	13.5	11.9	12.7
Stent lenght(cm)	6.78	6.76	6.79
Visualization of pancreatic duct	77	79	156
Pancreatic cancer	64 (66.6 %)	67 (69.8 %)	131 (68.2%)
Cholangiocarcinoma	31 (32.3 %)	28 (29.1 %)	59 (30.7 %)
Metastatic lymph nodes	1 (1.1%)	1 (1.1%)	2 (1.1 %)