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Table 3 Performance of the rapid urine test for the diagnosis of AUC according to the bacterial concentration in urine culture

From: Antibiotic treatment of acute uncomplicated cystitis based on rapid urine test and local epidemiology: lessons from a primary care series

Performance criteria Bacterial concentrations in urine cultures
  ≥ standard thresholdsa ≥ reduced thresholdsb
Sensitivity 98% 98%
Specificity 23% 33%
Positive predictive value 63% 79%
Negative predictive value 92% 84%
  1. aStandard thresholds: ≥103 CFU/mL for Enterobacteriaceae and S. saprophyticus, ≥104 CFU/mL for other pathogens.
  2. bReduced thresholds: ≥102 CFU/mL for Enterobacteriaceae and S. saprophyticus, ≥103 CFU/mL for other pathogens.