Table 4.
Durations and Difficulty Scores of the Biopsy Simulator Categorized according to the Site of the Biopsy and the Experience Level of the Endoscopist
| Resident (n=14) | First-year clinical fellow (n=11) | Second-year clinical fellow (n=10) | Staff (n=5) | |
|---|---|---|---|---|
| 1st site (LB-GC/AW) | ||||
| Mean duration of 5 trials, sec | 64.8±13.0* | 21.1±5.2† | 15.5±2.8‡ | 15.2±5.3 |
| Rank of mean duration | 2 | 3 | 3 | 3 |
| Mean scores for level of difficulty | 6.5±0.8 | 5.8±1.5 | 5.8±1.0 | 6.6±0.5 |
| Rank of scores for the level of difficulty | 1 | 2 | 2 | 1 |
| 2nd site (antrum-AW) | ||||
| Mean duration of 5 trials, sec | 38.1±14.3§ | 14.1±3.0|| | 11.9±2.0 | 10.1±1.6 |
| Rank of mean duration | 7 | 7 | 7 | 6 |
| Mean scores for level of difficulty | 1.1±0.3 | 1.6±0.8 | 1.5±1.3 | 1.0±0.0 |
| Rank of scores for the level of difficulty | 7 | 7 | 7 | 7 |
| 3rd site (LB-AW) | ||||
| Mean duration of 5 trials, sec | 53.2±24.6# | 16.1±4.1** | 12.8±2.6†† | 9.5±2.2 |
| Rank of mean duration | 4 | 6 | 6 | 7 |
| Mean scores for level of difficulty | 3.1±1.5 | 2.4±1.7 | 2.3±1.2 | 2.8±1.3 |
| Rank of scores for the level of difficulty | 6 | 6 | 6 | 6 |
| 4th site (LB-LC/PW) | ||||
| Mean duration of 5 trials, sec | 51.0±17.6‡‡ | 17.6±3.8§§ | 14.4±2.7|| || | 12.0±2.7 |
| Rank of mean duration | 5 | 5 | 5 | 4 |
| Mean scores for level of difficulty | 3.1±0.9 | 3.5±1.0 | 3.0±0.8 | 3.0±0.7 |
| Rank of scores for the level of difficulty | 5 | 5 | 5 | 5 |
| 5th site (MB-PW) | ||||
| Mean duration of 5 trials, sec | 70.0±45.8 | 22.4±8.3## | 20.4±6.1*** | 16.5±8.9 |
| Rank of mean duration | 3 | 2 | 2 | 2 |
| Mean scores for level of difficulty | 4.8±1.1 | 4.5±1.1 | 4.4±1.3 | 4.2±0.8 |
| Rank of scores for the level of difficulty | 3 | 3 | 4 | 4 |
| 6th site (MB-LC) | ||||
| Mean duration of 5 trials, sec | 48.5±18.3††† | 19.2±7.6‡‡‡ | 14.6±2.8§§§ | 10.3±0.6 |
| Rank of mean duration | 6 | 4 | 4 | 5 |
| Mean scores for level of difficulty | 3.6±0.9 | 3.9±1.2 | 4.5±1.4 | 4.4±1.5 |
| Rank of scores for the level of difficulty | 4 | 4 | 3 | 3 |
| 7th site (cardia) | ||||
| Mean duration of 5 trials, sec | 92.0±38.5|| || || | 34.8±11.6 | 23.1±6.0### | 17.0±2.1 |
| Rank of mean duration | 1 | 1 | 1 | 1 |
| Mean scores for level of difficulty | 5.9±1.3 | 6.5±0.7 | 6.5±0.7 | 6.0±1.2 |
| Rank of scores for the level of difficulty | 2 | 1 | 1 | 2 |
Data are presented as means±SD. No significant differences were found between groups for the mean scores of the difficulty level.
LB, lower body; GC, greater curvature; AW, anterior wall; LC, lesser curvature; PW, posterior wall; MB, mid-body.
p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group;
p=0.006 vs second-year fellow group and p>0.05 vs staff group;
p>0.05 vs staff group;
p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group;
p=0.043 vs second-year clinical fellow group and p=0.009 vs staff group; p>0.05 vs staff group;
p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group.
p=0.029 vs second-year clinical fellow group and p=0.002 vs staff group;
p= 0.028 vs staff group;
p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group;
p=0.036 vs second-year clinical fellow group and p=0.019 vs staff group;
p>0.05 vs staff group; p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group;
p>0.05 vs second-year clinical fellow group and p>0.05 vs staff group;
p>0.05 vs staff group;
p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group;
p>.05 vs second-year clinical fellow group and p=0.003 vs staff group;
p=0.001 vs staff group;
p<0.001 vs first-year clinical fellow group, p<0.001 vs second-year clinical fellow group, and p<0.001 vs staff group; p=0.005 vs second-year clinical fellow group and p<0.001 vs staff group;
p=0.008 vs staff group.