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%
|
-
aStandard thresholds: ≥103 CFU/mL for Enterobacteriaceae and S. saprophyticus, ≥104 CFU/mL for other pathogens.
-
bReduced thresholds: ≥102 CFU/mL for Enterobacteriaceae and S. saprophyticus, ≥103 CFU/mL for other pathogens.