Short (2–4 d) v standard (7–14 d) duration of antibiotic treatment in children with urinary tract infection (UTI)*
| Outcomes | Short course | Standard course | Weighted RRI (95% CI) | NNH |
|---|---|---|---|---|
| Frequency of bacteriuria at 0–7 days (8 studies) | 15% | 14% | 6% (−36 to 76) | Not significant |
| Weighted RRR (CI) | NNT | |||
|---|---|---|---|---|
| *Abbreviations defined in glossary; RRR, RRI, and CI calculated from data in article using a random effects model. | ||||
| Recurrent UTI at 10 days to 15 months (12 studies) | 23% | 24% | 1% (−23 to 33) | Not significant |
| Recurrent UTI caused by resistant organisms at ≥10 days (3 studies) | 11% | 33% | 61% (−29 to 88) | Not significant |









