Table 1. Baseline characteristics.

	Novices	Intermediate	Experienced	Experts	Total
No. participants	11	5	8	22	46
Male (%)	27.3	60	100	100	78.3
Mean age (y)	32.3	38.4	46.5	52.0	45.0
Academic hospital (%)	45.5	100	87.5	95.5	82.6
Endoscopic experience (y)	1.63	7.2	15.5	23.3	15.1
Simulator familiarity (%)	100	80	62.5	77.3	80.4

Novice, 10 fellows and 1 gastroenterologist; intermediate, 3 gastroenterologists, 1 fellow and 1 surgeon; experienced, 7 gastroenterologists and 1 surgeon; experts, 20 gastroenterologists and 2 surgeons.