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TABLE 2

Accuracy of Widely Available Bedside Tests for UTI in a Hypothetical Cohort of 1000 Children Tested for UTI

Sensitivity, %Specificity, %No. Unnecessary Antibiotic PrescriptionsaNo. With Delayed or Missed Diagnosisa
Leukocyte esterase 79 87 120 16 
Nitrite 49 98 18 38 
Leukocyte esterase or nitrite 88 79 194 
Sensitivity, %Specificity, %No. Unnecessary Antibiotic PrescriptionsaNo. With Delayed or Missed Diagnosisa
Leukocyte esterase 79 87 120 16 
Nitrite 49 98 18 38 
Leukocyte esterase or nitrite 88 79 194 
a

Assuming a prevalence of 7.5% (ie, 75 with UTI and 925 with no UTI).2,45 

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