Renal scarring in patients who completed the study
| Event | Treatment groups | p value | Difference of proportions (95% CI) | ||||
|---|---|---|---|---|---|---|---|
| IV 10 days | IV 3 days | ||||||
| Renal scarring (%) | 36/110 (33) | 40/110 (36) | 0.57 | 0.036 (−0.09 to 0.16) | |||
| ⩽1 year of age | 11/54 (20) | 11/37 (30) | 0.33 | 0.094 (−0.09 to 0.27) | |||
| >1 year of age | 25/56 (45) | 29/73 (40) | 0.57 | −0.049 (−0.22 to 0.12) | |||
| Among children with vesicoureteric reflux | 15/38 (39) | 14/36 (39) | 1.00 | 0.006 (−0.22 to 0.23) | |||
| Among children without vesicoureteric reflux | 21/72 (29) | 25/722-150 (35) | 0.47 | 0.056 (−0.10 to 0.21) | |||
| Renal scarring in the subgroup of children who had a first urinary tract infection (%) | 29/93 (31) | 32/90 (36) | 0.53 | 0.044 (−0.09 to 0.18) | |||
| Renal scarring in the subgroup of children who had partially or totally reversible renal lesions (%) | 34/108 (31) | 36/106 (34) | 0.70 | 0.025 (−0.10 to 0.15) | |||
↵2-150 Two children did not have voiding cystourethrography, one with renal scarring, the other without.