Table 4.
Main clinical characteristics according to different stage of COVID-19 pandemic during the year 2020.
| Stage I | Stage II | Stage III | Stage IV | Stage V | |
| n | N = 25 | N = 49 | N = 13 | N = 18 | N = 43 |
| Surgical management, n (%) | 12 (48.0) | 26 (53.1) | 7 (53.8) | 8 (44.4) | 21 (48.8) |
| Medical management, n (%) | 9 (36.0) | 17 (34.7) | 6 (46.2) | 9 (50.0) | 21 (48.8) |
| Automatic discharge, n (%) | 4 (16.0) | 6 (12.2) | 0 (0.0) | 1 (5.6) | 1 (2.4) |
| Emergency death, n (%) | 1 (4.0) | 8 (16.3) | 2 (15.4) | 3 (16.7) | 8 (18.6) |
| Surgical death, n (%) | 0 (0.0) | 1 (4.2) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Onset time (median [IQR]), h | 18.00 [6.50, 48.00] | 13.00 [8.00, 40.00] | 11.00 [5.00, 24.00] | 9.00 [5.00, 24.00] | 12.00 [7.00, 24.00] |
| Emergency stay time (median [IQR]), h | 18.83 [9.57, 35.70] | 37.28 [23.92, 56.23] | 73.22 [28.00, 84.73] | 34.34 [13.12, 74.56] | 20.13 [12.71, 32.66] |
| Interval from onset to operation (median [IQR]), h | 29.91 [22.90, 57.48] | 69.66 [44.19, 103.37] | 79.33 [73.46, 145.49] | 36.46 [28.50,108.19] | 39.78 [25.67, 96.17] |