Table 3 Sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV), and kappa statistics by disposition and oxygen requirement
From: Diagnostic accuracy of lung ultrasound for SARS-CoV-2: a retrospective cohort study
| Â | Sensitivity | Specificity | NPV | PPV | Kappa |
|---|---|---|---|---|---|
Disposition | Â | Â | Â | Â | Â |
 Discharged from ED, N = 41 | 76.9 | 89.3 | 89.3 | 76.9 | 0.66 |
 Floor/IMC, N = 86 | 82.9 | 64.4 | 80.6 | 68.0 | 0.47 |
 ICU, N = 46 | 92.1 | 50.0 | 57.1 | 89.7 | 0.44 |
Oxygen requirement | Â | Â | Â | Â | Â |
 None or nasal canula, N = 139 | 84.4 | 73.3 | 84.6 | 73.0 | 0.57 |
 HFNC, N = 10 | 88.9 | 100.0 | 50.0 | 100.0 | 0.62 |
 Intubation, N = 25 | 90.0 | 40.0 | 50.0 | 85.7 | 0.32 |