Benefit versus harm for circumcision in preventing urinary tract infection in boys at different levels of risk for UTI per 1000 boys, assuming a complication rate of 2% and an odds ratio of 0.13
| Patient group | Risk of UTI | UTI in uncircumcised (n) | UTI in circumcised (n) | UTI prevented by circumcision (n) | Complications of circumcision (n) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| OR, odds ratio; UTI, urinary tract infection; VUR, vesicoureteric reflux. | ||||||||||
| Normal | 1% | 10 | 1 | 9 | 20 | |||||
| Past UTI | 10% | 100 | 13 | 87 | 20 | |||||
| High grade VUR | 30% | 300 | 39 | 261 | 20 | |||||