Table 4. Comparison of severity scores with the developed Nutri-CoV score in the validation cohort using time-dependent area under the ROC curves (t-AUROC) using an age and sex adjusted Cox estimator.
| Score | c-statistic (95%CI) | 7-day t-AUROC | 15-day t-AUROC | 30-day t-AUROC |
|---|---|---|---|---|
| Nutri-CoV | 0.797 (0.765–0.829) | 0.864 | 0.914 | 0.877 |
| MSL-COVID-19 | 0.713 (0.669–0.757) | 0.769 | 0.780 | 0.998 |
| ABC-GOALS | 0.759 (0.718–0.800) | 0.844 | 0.836 | 0.856 |
| Charlson comorbidity index | 0.654(0.604–0.703) | 0.710 | 0.641 | 0.536 |
| qSOFA | 0.657 (0.629–0.685) | 0.679 | 0.752 | 0.720 |
| NEWS | 0.733 (0.696–0.770) | 0.820 | 0.855 | 0.750 |
| NEWS2 | 0.727 (0.690–0.765) | 0.817 | 0.848 | 0.972 |