This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

AAP UTI algorithm 2011 / Urinary tract infection risk in febrile infants (historical guideline)

Urinary tract infection risk in children aged 2–24 months by the risk factors of the AAP guideline 2021 (withdrawn) 2011 – not identical to UTICalc (Shaikh 2018/2022)

Child

Sex

male female

Boy circumcised

Age

Findings

White / non-Black skin color (factor from the original studies; controversial, see text)

Temperature ≥ 39 °C

Fever for ≥ 2 days (girls) or > 24 hours (boys)

No other source of infection identifiable

Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.

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Sources

Urinary tract infection: clinical practice guideline for the diagnosis and management of the initial UTI in febrile infants and children 2 to 24 months (Pediatrics 128:595–610) – Figure 2 Roberts KB; Subcommittee on Urinary Tract Infection, Steering Committee on Quality Improvement and Management, American Academy of Pediatrics, 2011. Guideline (freely accessible, full text read)

Scientific basis last reviewed: September 2026.

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Note

Calculation aid for healthcare professionals. Percentiles and z-scores describe the position of a measured value in the reference population; clinical assessment remains with the treating physician.