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Urine Clarity Inaccurate to Rule Out Urinary Tract Infection in Women

Amanda Foley and Linda French
The Journal of the American Board of Family Medicine July 2011, 24 (4) 474-475; DOI: https://doi.org/10.3122/jabfm.2011.04.100007

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Tables

  • Table 1.

    Contingency table with reference test urine culture >100,000 CFU

    Positive CultureNegative CultureTotalsPositive Predictive ValueNegative Predictive Value
    Visual test
        Positive2352/5 (40.0%)
        Negative13829582/95 (86.3%)
        Totals1585100
    Sensitivity2/15 (13.3%)
    Specificity82/85 (96.5%)
  • Table 2.

    Contingency table with reference test urine culture >10,000 CFU

    Positive CultureNegative CultureTotalsPositive Predictive ValueNegative Predictive Value
    Visual test
        Positive2352/5 (40.0%)
        Negative14819581/95 (85.3%)
        Totals1684100
    Sensitivity2/19 (12.5%)
    Specificity81/84 (96.4%)
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