Table 4 Machine learning algorithm identifying the importance predictive performance (%) for death in-hospitalized patients infected with Delta or Omicron*
| Â | Variable or Dataset | COVID-attributed Deaths | All-Cause Deaths | ||
|---|---|---|---|---|---|
In-hospital | In-hospital + ≤ 30 days of discharge | In-hospital | In-hospital + ≤ 30 days of discharge | ||
Importance | Initial Rothman Score | 16.41 | 39.66 | 15.88 | 36.35 |
| Â | News-2 Score | 12.56 | 4.88 | 13.60 | 3.90 |
| Â | Neutrophils | 9.11 | 9.96 | 10.86 | 10.61 |
| Â | Level of Care | 7.73 | 3.19 | 9.47 | 3.88 |
|  | Days from PCR + to Adm. | 6.51 | 3.41 | 5.62 | 3.08 |
| Â | O2 Saturation | 5.31 | 7.31 | 4.19 | 4.27 |
| Â | Creatinine | 6.81 | 3.15 | 7.97 | 5.95 |
| Â | Age Group | 5.63 | 4.99 | 9.51 | 6.41 |
| Â | Respiratory Rate | 4.44 | 2.39 | 4.47 | 4.84 |
| Â | CRP | 8.08 | 6.12 | 5.08 | 4.88 |
| Â | Lymphocytes | 3.44 | Â | 3.11 | 5.43 |
| Â | WBC | 4.34 | 6.08 | 4.25 | 4.33 |
| Â | Procalcitonin | 3.88 | 4.90 | 3.49 | 3.84 |
| Â | Initial Severity | 2.62 | Â | 2.49 | Â |
| Â | Days from symptom onset to PCR+ | 3.11 | 3.95 | Â | Â |
| Â | Confusion/altered mental status | Â | Â | Â | 2.22 |
AUC | Training | 97.1 | 95.7 | 98.8 | 96.8 |
| Â | Testing | 83.8 | 81.7 | 85.5 | 78.4 |