Table 2.

Comparison of performances of Groups A, B and C in the initial evaluation

	Group A	Group B	Group C	p value (B vs C)	p value (A vs B vs C)
	No experience (n = 8)	Moderate experience (n = 17)	Extensive experience (n = 9)
Visualization score (median [IQR])	25 [6]	27 [1]	28 [3]	0.545	0.147
Identification score (median [IQR])	8 [11]	24 [8]	20[9]	0.144	0.001
Total procedure time in seconds (median [IQR])	561 [134]	198 [112]	210 [77]	0.872	< 10−4
Overall performance score (%) (median [IQR])	5.9 [5.1]	25.3 [13.8]	22.2 [5.5]	0.5	< 10−4
Scope-wall contact time (%) (median [IQR])	60.5 [18]	62 [8]	63 [21]	0.871	0.934
Scope at mid-lumen time (%) (median [IQR])	12.5 [6]	11 [3]	12 [6]	0.551	0.687