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Diagnostic performance of the CORC rule
| SARS test same day | ||
| + | − | |
| CORC rule result | ||
| + (score > 0) | 36 | 189 |
| − (score ≤ 0) | 5 | 195 |
| Index | Value | 95% CI |
| Prevalence | 9.6% | 6.9%–12.8% |
| False negative rate | 2.5% | 0.8%–5.6% |
| Sensitivity | 88% | 74%–95% |
| Specificity | 51% | 46%–57% |
| LR− | 0.24 | 0.10–0.50 |
Abbreviation: CORC, Coronavirus rule out criteria.
