Outcomes of COVID-19 according to mode of onset (fulminant vs non-fulminant)
| After excluding loss to follow-up | Total n=1962 | Fulminant onset n=627 | Non-fulminant onset n=1335 | P value for difference |
| 30-day mortality risk | 181 (9.2%) | 108 (17.2%) | 73 (5.5%) | <0.001 |
| Pulmonary embolism | 8 (0.4%) | 5 (0.8%) | 3 (0.2%) | 0.12 |
| RRT | 34 (1.7%) | 23 (3.7%) | 11 (0.8%) | <0.001 |
| After excluding loss to follow-up and ARDS at initial hospitalisation | Total n=1867 | Fulminant onset n=560 | Non-fulminant onset n=1307 | P value for difference |
| ARDS after hospitalisation | 116 (6.2%) | 60 (10.7%) | 56 (4.3%) | <0.001 |
| Invasive mechanical ventilation after hospitalisation | 74 (4.0%) | 40 (7.1%) | 34 (2.6%) | <0.001 |
ARDS, acute respiratory distress syndrome; RRT, renal replacement therapy.