Table 2: Perioperative data of operated groins comparing expert X trainees during X after training program, 2015.
| Variable | Expert (70) | Trainees (10) | After training (20) | P |
| Operative time (minutes) | 126 (110-140) | 122 (114-135) | 106 (90-125) | 0.1 |
| Drainage time (days) | 6 (4-11) | 5 (4-6) | 7 (5-9) | 0.09 |
| Cellulitis (number/%) | 7 (10%) | 1 (12%) | 2 (10%) | 0.8 |
| Lymphocele (number/%) | 5 (7%) | 1 (12%) | 2 (10%) | 0.5 |
| Skin necrosis (number/%) | 1 (1.5%) | 0 (0%) | 1 (5%) | 0.08 |
| Median hospital stay (days) | 1(1-3) | 2 (1-4) | 3 (3-5) | 0.06 |
| Nodes removed (per side) | 7 (6-8) | 7 (5-8) | 6 (4-7) | 1.0 |