Table 2 Bedside upper airway sonography characteristics for intubation confirmation
| Â | Value | 95% Confidence interval | |
|---|---|---|---|
| Â | Â | Lower limit | Upper limit |
Sensitivity, % | 98% | 93% | 99.8% |
Specificity, % | 100% | 54.1% | 100% |
Positive predictive value | 100% | 96.3% | 100% |
Negative predictive value | 75% | 34.9% | 96.8% |
Likelihood ratio (+) | Infinity | - | - |
Likelihood ration (−) | 0.0198 | 0.005 | 0.0781 |