Table 4.

Predictive factors of a positive diagnosis via EGD in the multivariate analysis.

	Dx-positive patients (n = 34)	Dx-negative patients (n = 21)	Univariate analysis P value	Multivariate analysis
				P value	Odds ratio
Vomiting	19 (56%)	1 (4.8%)	0.00938	0.00795	28.3 (2.4–333)
Positive findings on AUS	15 (26%; 58%)	2 (18%; 11%)	0.0209	0.01530	13.5 (1.65–110)
Low Hb level (≤ 3 g/dL the lower normal limit)	24 (71%)	5 (24%)	0.00096	0.04850	6.7 (1.01–44.3)

EGD, esophagogastroduodenoscopy; Dx, diagnosis.