Table 2.
Performance of QCovid3 risk model in the validation cohort for covid-19 related death and hospital admission
| Covid-19 death | Covid-19 admission | |
|---|---|---|
| Overall | ||
| Harrell’s C statistic | 92.5 | 85.3 |
| R2 | 74.1 (71.1 to 77) | 65.7 (61.8 to 69.6) |
| Royston’s D statistic | 3.46 (3.19 to 3.73) | 2.83 (2.59 to 3.08) |
| Women | ||
| Harrell’s C statistic | 94.4 | 86.8 |
| R2 | 75.4 (71.6 to 79.3) | 66.4 (60.9 to 71.9) |
| Royston’s D statistic | 3.59 (3.22 to 3.96) | 2.88 (2.52 to 3.23) |
| Men | ||
| Harrell’s C statistic | 90.4 | 83.6 |
| R2 | 72.7 (68.5 to 76.9) | 64.9 (59.5 to 70.4) |
| Royston’s D statistic | 3.34 (2.99 to 3.7) | 2.79 (2.45 to 3.12) |
| One dose of vaccine only | ||
| Harrell’s C statistic | 93.6 | 85.5 |
| R2 | 71.3 (67.9 to 74.7) | 60 (55.2 to 64.7) |
| Royston’s D statistic | 3.23 (2.96 to 3.5) | 2.5 (2.26 to 2.75) |
| Two doses of vaccine | ||
| Harrell’s C statistic | 81.7 | 79.3 |
| R2 | 70 (54.5 to 85.6) | 72.1 (57.3 to 87) |
| Royston’s D statistic | 3.13 (1.97 to 4.29) | 3.29 (2.08 to 4.51) |
Harrell’s C statistic=time dependent area under the curve accounting for competing risks; confidence intervals could not be obtained.