Table 3.
WHO 2019-nCoV Ordinal Outcome Scale (J Marshall, personal communication, and Cao and colleagues73)
| Uninfected | 0 points |
| Ambulatory—no limitation of activities | 1 point |
| Ambulatory—limitation of activities | 2 points |
| Hospitalised—no oxygen (mild) | 3 points |
| Hospitalised—oxygen (mild) | 4 points |
| Hospitalised (severe) non-invasive ventilation or high-flow oxygen | 5 points |
| Hospitalised (severe) intubation and ventilation | 6 points |
| Hospitalised (severe) ventilation and additional organ support (vasopressors, RRT, ECMO) | 7 points |
| Death | 8 points |
nCoV, novel coronavirus; RRT, renal replacement therapy.