Table 5. Differences between groups.
| Novice vs. Intermediate |
Novice vs. Experienced |
Novice vs. Experts | Intermediate vs. Experienced |
Intermediate vs. Expert |
Experienced vs. Expert |
||
| Positioning endoscope | Chi-square Asymp.sign. |
6.500 0.013 |
0.000 0.000 |
6.000 0.000 |
10.000 0.171 |
33.000 0.186 |
75.000 0.565 |
| CBD Cannulation | Chi-square Asymp.sign. |
17.000 0.267 |
12.000 0.007 |
17.000 0.000 |
12.000 0.284 |
25.000 0.064 |
70.000 0.420 |
| PD Cannulation |
Chi-square Asymp.sign. |
12.000 0.090 |
15.000 0.016 |
42.000 0.002 |
14.000 0.435 |
42.000 0.447 |
80.500 0.730 |
| PD stent placement | Chi-square Asymp.sign. |
0.000 0.002 |
0.000 0.000 |
2.500 0.000 |
17.500 0.724 |
43.500 0.485 |
67.500 0.344 |
| CBD Stone extraction | Chi-square Asymp.sign. |
11.500 0.069 |
26.000 0.152 |
50.000 0.006 |
17.000 0.724 |
54.000 0.976 |
68.000 0.368 |
| CBD Stent placement | Chi-square Asymp.sign. |
18.000 0.320 |
3.000 0.000 |
22.000 0.000 |
8.000 0.093 |
27.000 0.086 |
80.000 0.730 |
| Total procedure time | Chi-square Asymp.sign. |
10.000 0.052 |
2.000 0.000 |
6.000 0.000 | 18.000 0.833 |
40.000 0.377 |
66.500 0.320 |
Mann-Whitney U Test, two-tailed test, exact significance
CBD, common bile duct; PD, pancreatic duct