| Participant characteristics | Reported totals |
|---|---|
| Novices (no previous experience; medical students or junior doctors) | 253 (reported in 16 articles) |
| Intermediates (limited experience, not primary surgeon; surgical trainees) | 141 (reported in 16 articles) |
| Experts (extensive experience, primary surgeons; high level trainees, consultants) | 37 (reported in 16 articles) |
| Female:Male | 62:155 (reported in 6 articles) |