DIV group (n = 56)

ORS group (n = 51)

P-value

Age, years, mean ± SD

68.9

±

10.2

70.5

±

10.8

0.435

a

Gender (male/female)

31/25

25/26

0.564

c

Diagnosis

0.592

c

Choledocholithiasis

26

46.4

23

45.1

Pancreatic adenocarcinoma

17

30.4

16

31.4

Obstractive jaudice

5

8.9

8

15.7

Chronic pancreatitis

1

1.8

2

3.9

Distal cholangiocarcinoma

3

5.4

2

3.9

Pancreas divism

3

5.4

0

0.0

Pancreaticobiliary maljunction

1

1.8

0

0.0