Table 8 Prevalence’s scenarios
value | 95% CI | value | 95% CI | value | 95% CI | value | 95% CI | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Prevalence | 2% | - | - | 5% | - | - | 10% | - | - | 24% | - | - |
Sensitivity | 99.7% | 98.5 | 100 | 99.7% | 98.5 | 100 | 99.7% | 98.5 | 100 | 99.7% | 98.5 | 100 |
Specificity | 99.4% | 98.7 | 99.7 | 99.4% | 98.7 | 99.7 | 99.4% | 98.7 | 99.7 | 99.6% | 99.1 | 99.9 |
ROC area | 0.996 | 0.992 | 0.999 | 0.996 | 0.992 | 0.999 | 0.996 | 0.992 | 0.999 | 0.997 | 0.994 | 1 |
PPV | 76.6% | 59.9 | 86.2 | 89.4% | 79.4 | 94.1 | 94.7% | 89.1 | 97.1 | 98.9% | 96.9 | 99.5 |
NPV | 100% | 100 | 100 | 100% | 99.9 | 100 | 100% | 99.8 | 100 | 99.9% | 99.4 | 100 |