GROUP I

GROUP II

n

%

n

%

Patients

53

48

p-value

Sex

Male

13

24.5

9

18.8

0.4823*

Female

40

75.5

39

81.3

Age (years)

Average ± SD

39.8 17.3

36.413.1

0.448**

Echotomography

Cholelithiasis

30

56.6

30

62,5

0.6823*

Acute lithiasic cholecystitis

18

34.0

14

29.2

Biliary sludge

3

5.7

2

4.2

Alithiasic gallbladder

2

3.8

2

4.2

Bile duct diameter (mm)

Average ± SD

6.9 ± 2.2

7.2 ± 2.4

0.299**

Jaundice

Yes

24

45.3

29

60.4

0.1283*

No

29

54.7

19

39.6

Duodenum conditions

Normal

46

86.8

43

89.6

0.4811*

Peripapillar diverticulum

5

9.4

3

6.3

Edematous

2

3.8

1

2.1

Papilla conditions

Normal

29

54.7

25

52.1

0.969*

Dilated ostium

24

45.3

23

47.9

Bile duct cannulation

First attempt successful

47

88.7

47

97.9

0.07569*

Second attempt successful

6

11.3

1

2.1