Summary Table
High-Grade VUR	Multivariable Analysis
	OR	95% CI	p-value
Uroepithelial Thickening	54.45	4.97-597.0	0.001
Hydroureter	5.35	1.24-22.99	0.024
Duplication	10.78	2.21-52.57	0.003
Renal Dysmorphia	14.23	2.17-94.37	0.006
Criteria 1*	Presence of VUR	Absence of VUR	Total
Positive RBUS	24	57	81
Negative RBUS	15	39	54
Totals	39	96	135
Criteria 2*	Presence of VUR	Absence of VUR	Total
Positive RBUS	21	17	38
Negative RBUS	18	79	97
Totals	39	96	135
Test Characteristics of RBUS for HGVUR	Criteria 1	Criteria 2	UET
Sensitivity	88%	100%	94%
Specificity	44%	82%	57%
PPV	17%	42%	23%
NPV	96%	100%	99%
LR+	1.57	5.41	2.19
LR-	0.27	0	0.11
OR (95% CI)	5.43 (1.18-24.97)	143.00 (8.27-2473.74)	20.00 (2.56-156.38)
*Criteria 1: presence of HN SFU grade 3-4 or HU
Criteria 2: presence of at least two of the following: UET; HU; duplication; renal dysmorphia.