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Analysis of the effectiveness of CRP and SAA for predicting the occurrence of the severe COVID-19.
| Value | CRP | SAA |
|---|---|---|
| Sensitivity % | 61.5 | 84.6 |
| Specificity % | 90.9 | 77.4 |
| Youden index % | 52.5 | 61.9 |
| Cut-off points | >29.5 | >157.9 |
CRP, C-reactive protein; SAA, serum amyloid A; COVID-19, coronavirus disease 2019.
