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Related Experiment Videos

Screening methods for covert bacteriuria in schoolgirls.

B Edwards, R H White, H Maxted

    British Medical Journal
    |May 31, 1975
    PubMed
    Summary

    Screening schoolgirls for bacteriuria using dipslides proved reliable, with the dipstream technique offering a cost-effective, simple method. This approach minimizes false negatives, making it suitable for general practice screening.

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    Area of Science:

    • Pediatric Nephrology
    • Clinical Microbiology
    • Diagnostic Testing

    Background:

    • Bacteriuria screening in children is crucial for early detection of urinary tract infections.
    • Previous screening methods have shown limitations in accuracy and cost-effectiveness.

    Purpose of the Study:

    • To evaluate the efficacy of different screening tests for bacteriuria in school-aged girls.
    • To identify a reliable, cost-effective, and simple screening method for asymptomatic bacteriuria.

    Main Methods:

    • Compared hypoglucosuria tests (fluorometric, Uriglox strips) with Oxoid and Uricult dipslides for bacteriuria screening.
    • Evaluated the "dipstream" technique, a modified dipslide method, in 1582 schoolgirls and 26 symptomatic girls.
    • Analyzed false-negative and false-positive rates, cost-effectiveness, and correlation with urinary tract infection symptoms and renal scarring.

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    Main Results:

    • Hypoglucosuria tests yielded high false-negative rates (16.7-20.8%).
    • Dipslides (Oxoid, Uricult) demonstrated low false-positive and no false-negative rates.
    • The dipstream technique was cost-effective, simple, and showed no false-negative results; its false-positive rate decreased from 13.5% to 1.8% with adjusted criteria.
    • Bacteriuria prevalence was 2.3% in schoolgirls, with higher symptom and vesicoureteric reflux rates in affected girls.

    Conclusions:

    • The dipstream technique is a simple, reliable, and cost-effective method for screening bacteriuria in schoolchildren.
    • This method is suitable for general practice and warrants further research into the natural history of covert bacteriuria.
    • Early detection through effective screening can potentially aid in managing urinary tract infections and associated complications in children.