Table 7 Performance of two-stage model during COVID-19 period
|  | Two-stage model (01/01/17–03/01/20) | Two-stage model (03/01/20–02/22/22) |
|---|---|---|
0–2 days | 0.736 (0.731, 0.741) | 2.298 (2.280, 2.313) |
2–4 days | 0.705 (0.700, 0.709) | 1.251 (1.236, 1.263) |
4–7 days | 1.760 (1.750, 1.772) | 2.324 (2.315, 2.333) |
0–7 days | 0.915 (0.911, 0.919) | 1.934 (1.922, 1.944) |