Table 5 Performance of CT-SS and CO-RAD score in predicting severe COVID-19
From: CO-RADS versus CT-SS scores in predicting severe COVID-19 patients: retrospective comparative study
Test | Sensitivity | 95% CI | Specificity | 95% CI | PPV | NPV |
|---|---|---|---|---|---|---|
Total CT-SS | ||||||
 Cutoff > |  |  |  |  |  |  |
  1.5 | 100% | 0.9384 to 1.000 | 33% | 0.2342 to 0.4446 | 25% | 100% |
  2.5 | 91% | 0.8102 to 0.9714 | 57% | 0.4588 to 0.6789 | 32% | 97% |
  7.5 | 50% | 0.3658 to 0.6342 | 100% | 0.9570 to 1.000 | 100% | 90% |
CO-RAD | ||||||
 Cutoff > |  |  |  |  |  |  |
  2.5 | 100% | 0.9384 to 1.000 | 55% | 0.4352 to 0.6566 | 33% | 100% |
  3.5 | 98% | 0.9076 to 0.9996 | 81% | 0.7092 to 0.8870 | 53% | 100% |
  4.5 | 88% | 0.7670 to 0.9501 | 98% | 0.9166 to 0.9971 | 89% | 97% |