How common is pediatric urinary tract infection (UTI)?

Updated: Mar 19, 2019
  • Author: Donna J Fisher, MD; Chief Editor: Russell W Steele, MD  more...
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The incidence of UTIs varies based on age, sex, and gender. Overall, UTIs are estimated to affect 2.4-2.8% of children in the United States annually.

Occurrences of first-time, symptomatic UTIs are highest in boys and girls during the first year of life and markedly decrease after that. Shaikh et al found that the overall prevalence of UTI in infants presenting with fever was 7.0%. [6] By age, the rates in girls were as follows:

  • 0-3 months - 7.5%

  • 3-6 months - 5.7%

  • 6-12 months - 8.3%

  • >12 months - 2.1%

In febrile boys less than 3 months of age, 2.4% of circumcised boys and 20.1% of uncircumcised boys had a UTI. [6]

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