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Optimal cutoff value for COVID-19 ARDS Prediction Score (CAPS).
| Cutoff value | AUROC | 95% CI | P value | Sensitivity (%) | Specificity (%) | PPV (%) (∗95% CI) | NPV (%) (∗95% CI) | |
|---|---|---|---|---|---|---|---|---|
| CAPS | 2 | 0.85 | 0.78–0.91 | <0.001 | 94 | 75 | 52 (47–56) | 98 (97–99) |
Acronyms: AUROC = area under the receiver operating characteristic curve; CI = confidence interval; PPV = positive predictive value; NPV = negative predictive value. ∗Confidence interval of PPV and NPV was calculated using the Clopper-Pearson exact method.
