Table 1.

Participant and imaging characteristics of the sample

	Children aged <60 months with a history of UTI as the indication for initial GU imaging (n=2259)
Sex
Female	1787 (79.1%)
Male: uncircumcised	306 (13.6%)
Male: circumcised	50 (2.2%)
Male: circumcision status unknown	116 (5.1%)
Age
0–1 months	78 (3.45%)
2–24 months	1701 (75.3%)
25–59 months	480 (21.25%)
Prior UTI history
First UTI	1557 (68.9%)
Recurrent UTI	176 (7.8%)
Recurrence status unknown	526 (23.3%)
UTI fever status
Febrile UTI	2045 (90.5%)
Non-febrile UTI	89 (3.9%)
Febrile history unknown	125 (5.5%)
VUR grade on VCUG
No VUR	1317 (58.3%)
I or II	469 (20.8)
II–III or III	410 (18.1%)
>III	63 (2.8%)