Table 3 Qualitative and quantitative analysis
Parameter | Qualitative | Quantitative | |
|---|---|---|---|
105 cfu/ml | 106 cfu/ml | ||
Sensitivity | 81% | 65% | 26% |
Specificity | 23% | 48% | 78% |
Positive predictive value | 18% | 21% | 20% |
Negative predictive value | 86% | 87% | 83% |
Likelihood ratio of positive test | 1.05 | 1.25 | 1.18 |
Likelihood ratio of negative test | 0.83 | 0.73 | 0.95 |