Abstract 292 Table 1

Urgent care POCT UA and urine culture predictive statistics

For trace LE, ≥ 50,000, nitrite negative
True Positive 13 Sensitivity 86.7% 95% CI 58.4% 97.7%
False Positive 226 Specificity 57.4% 95% CI 53.1% 61.7%
False Negative 2 PPV 5.4% 95% CI 3.1% 9.3%
True Negative 205 NPV 99.3% 95% CI 97.4 99.9%
For LE+ = 1+ through 3+, ≥ 50,000, nitrite negative
True Positive 124 Sensitivity 98.4% 95% CI 93.8% 99.7%
False Negative 439 Specificity 41.0% 95% CI 37.5% 44.6%
False Negative 2 PPV 22.0% 95% CI 18.7% 25.7%
True Negative 305 NPV 99.3% 95% CI 97.4% 99.9%