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Published on: June 23, 2015
Urinary tract infections and the uncircumcised state: an update
1Department of Pediatrics, Walter Reed Army Medical Center, Washington, DC 20307-5001.
Insights
Male infants who are not circumcised have a significantly higher risk of urinary tract infections (UTIs). This study found uncircumcised boys had a 10-fold greater incidence of UTIs compared to circumcised boys.
Area of Science:
- Pediatrics
- Urology
- Infectious Disease Epidemiology
Background:
- Urinary tract infections (UTIs) are common in infants.
- The role of circumcision in UTI prevention is a subject of ongoing research.
- Understanding risk factors for infant UTIs is crucial for public health.
Purpose of the Study:
- To investigate the association between circumcision status and the occurrence of UTIs in male infants.
- To analyze the incidence of UTIs in relation to circumcision rates over time.
- To synthesize existing evidence on circumcision and UTI risk through meta-analysis.
Main Methods:
- Retrospective review of UTI hospitalizations in 209,399 infants born in US Army hospitals (1985-1990).
- Analysis of UTI incidence in circumcised versus uncircumcised male infants.
- Meta-analysis of nine previous studies on circumcision and pediatric UTIs.
Main Results:
- Uncircumcised male infants had a 10-fold higher incidence of UTIs than circumcised infants.
- Circumcision rates increased from 70.3% to 80.2% during the study period.
- Meta-analysis revealed a combined 12-fold increased risk of UTIs in uncircumcised boys, with individual studies showing a 5- to 89-fold increase.
Conclusions:
- Male infant circumcision is associated with a significantly lower risk of urinary tract infections.
- Informed consent counseling should include information on the reduced UTI risk for circumcised boys.
- The findings support the protective effect of circumcision against UTIs in male infants.
Abstract:
In a two-part study of the circumcision status of boys with urinary tract infections (UTIs), we reviewed the occurrence of UTIs in 209,399 infants born in US Army hospitals worldwide from 1985 to 1990. During the first year of life, 1,046 (0.5%: 550 girls and 496 boys) were hospitalized for UTIs. Noncircumcised male infants had a 10-fold greater incidence of infection than did circumcised male infants. The frequency rate of circumcision rose significantly, from 70.3% to 80.2%, during the study period. Among uncircumcised boys younger than 3 months with UTIs, 23% had concomitant bacteremia involving the same organism. The second part of the study consisted of a meta-analysis of all nine previous reports on the circumcision status of boys with UTIs. These studies revealed a fivefold to 89-fold increased risk of infection in uncircumcised boys; the combined data yielded a 12-fold increase in UTIs in this population. Parents should be told of the lower risk of UTIs for circumcised boys during informed-consent counseling.
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