Table 2.
Endoscopic submucosal dissection (ESD) outcomes per group model 2
| Experts | ESD trainees | P‐value | |
|---|---|---|---|
| Procedure speed in cm2/h, mean (SD)* | 10.3 (13.1) | 6.7 (7.6) | <0.001 |
| Procedure time in minutes, mean (SD)* | 98.8 (73.0) | 119.9 (71.1) | <0.001 |
| Specimen area in cm2, mean (SD)* | 15.1 (16.8) | 12.6 (10.7) | 0.03 |
| En‐bloc resection, n (%) | 260 (95.6) | 301 (94.7) | 0.61 |
| R0 resection, n (%) | 233 (85.7) | 266 (83.7) | 0.50 |
| Curative resection, n (%) | 221 (81.3) | 258 (81.1) | 0.95 |
| Beyond fold, n (%)* | 171 (62.9) | 165 (51.9) | <0.01 |
| F2 fibrosis, n (%)* | 54 (19.9) | 39 (12.3) | 0.01 |
| Ileocecal valve or anus involvement, n (%)* | 27 (9.9) | 14 (4.4) | <0.01 |
| Muscularis propria damaged, n (%)* | 34 (12.5) | 59 (18.6) | 0.04 |
| Fever (>37.5°C), n (%) | 32 (11.8) | 39 (12.3) | 0.85 |
| PECS, n (%) | 19 (7.0) | 23 (7.2) | 0.93 |
| Perforation, n (%) | 10 (3.7) | 22 (6.9) | 0.09 |
| Delayed bleeding, n (%) | 8 (2.9) | 14 (4.4) | 0.34 |
| Emergency operation, n (%) | 0 (0.0) | 2 (0.6) | 0.19 |
*
P < 0.05.
Adjusted log linear regression of procedure speed (in cm/h) versus expertise and relevant confounders.
PECS, post‐colorectal ESD coagulation syndrome.