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 |