Table 5. Comparison of proportion of correct diagnosis among 3 modalities based on multivariate logistic regression analysis without data from the trainee (reviewer C).

Categories		Comparison			Odds ratio (OR)	95 % CI		P value
All diagnoses	Modality	Combination	vs	CE-EUS	1.68	0.89	3.17	0.1100
		Combination	vs	EUS-E	1.08	0.56	2.07	0.8240
	Reviewer	B	vs	A	0.81	0.48	1.36	0.4161
Group 1	Modality	Combination	vs	CE-EUS	1.29	0.59	2.79	0.5228
		Combination	vs	EUS-E	1.22	0.57	2.64	0.6098
	Reviewer	B	vs	A	0.63	0.34	1.19	0.1545
Group 2	Modality	Combination	vs	CE-EUS	2.16	0.43	10.91	0.3523
		Combination	vs	EUS-E	1.38	0.28	6.74	0.6883
	Reviewer	B	vs	A	1.06	0.29	3.92	0.9334
Group 3	Modality	Combination	vs	CE-EUS	2.72	0.51	14.44	0.2395
		Combination	vs	EUS-E	0.11	0.004	2.85	0.1843
	Reviewer	B	vs	A	2.25	0.46	11.05	0.3187