Table 2.
Estimated diagnostic parameters with 95% CI.
| Parameter | Estimate | 95% exact binominal CI (Clopper-Pearson intervals) |
|---|---|---|
| Sensitivity | 94.34% | (84.34–98.82%) |
| Specificity | 98.65% | (92.70–99.97%) |
| PPV | 98.94% | (89.55–99.95%) |
| NPV | 96.05% | (88.89–99.18%) |
| LR+ | 69.81 | – |
| LR– | 0.06 | - |
| Kappa | 0.9349 | (0.8721–0.9977)a |
a
Estimated using the standard normal distribution. CI, Confidence Intervals; PPV, predictive positive value; NPV, negative predictive value; LR+, positive likelihood ratio; LR–, negative likelihood ratio. Parameters estimated from the results of Saliva compared with NPS.