The frequency of clinical findings in children investigated for a UTI, by age group. Children aged 8 to 16 years are grouped together because of small numbers
| Clinical variables | Frequency (%) according to age in years | ||||||||
| Age | <1 | 1–2 | 2–3 | 3–4 | 4–5 | 5–6 | 6–7 | 7–8 | >8 |
| Febrile | 50 | 48 | 37 | 28 | 18 | 36 | 22 | 17 | 32 |
| Vomiting, anorexia, or malaise | 73 | 57 | 40 | 37 | 23 | 29 | 26 | 21 | 30 |
| Admitted to hospital | 59 | 35 | 26 | 12 | 8 | 3 | 4 | 12 | 23 |