index

Study group (n = 45)

Control group (n = 45)

t

p

Age (y)

44.53 ± 2.95

44.13 ± 0.19

0.67

0.508

Weight (kg)

64.31 ± 7.29

62.95 ± 7.02

0.899

0.371

Common bile duct diameter (mm)

11.70 ± 1.93

12.17 ± 1.99

−1.133

0.261