Mortality in the derivation and validation cohorts at different levels of SOARS
| Score | Derivation cohort (N=821; deaths=258) | Aintree validation cohort (N=290; deaths=94) | ISARIC validation cohort (N=14 231; deaths=4319) | ||||||
| No of deaths (n/N) | Mortality rate (%) | Proportion of deaths (%) | No of deaths (n/N) | Mortality rate (%) | Proportion of deaths (%) | No of deaths (n/N) | Mortality rate (%) | Proportion of deaths (%) | |
| 0 | 1/69 | 1.4% | 0.4% | 1/12 | 8.3% | 1.1% | 34/833 | 4.1% | 0.8% |
| 1 | 5/94 | 5.3% | 1.9% | 2/23 | 8.7% | 2.1% | 94/1529 | 6.1% | 2.2% |
| 2 | 6/102 | 5.9% | 2.3% | 3/37 | 8.1% | 3.2% | 273/1879 | 14.5% | 6.3% |
| 3 | 29/124 | 23.4% | 11.2% | 11/60 | 18.3% | 11.7% | 650/2577 | 25.2% | 15.1% |
| 4 | 73/206 | 35.4% | 28.3% | 24/72 | 33.3% | 25.5% | 1490/4013 | 37.1% | 34.5% |
| 5 | 63/117 | 53.9% | 24.4% | 29/48 | 60.4% | 30.9% | 1170/2402 | 48.7% | 27.1% |
| 6 | 58/80 | 72.5% | 22.6% | 16/30 | 53.3% | 17.0% | 571/939 | 60.8% | 13.2% |
| 7 | 22/28 | 78.6% | 8.5% | 6/6 | 100.0% | 6.4% | 36/58 | 62.1% | 0.8% |
| 8 | 1/1 | 100.0% | 0.4% | 2/2 | 100.0% | 2.1% | 0/1 | 0.0% | 0.0% |
The proportion of deaths at each score is defined as the number of deaths at that score divided by the total number of deaths in that particular cohort.
SOARS, SpO2, Obesity, Age, Respiratory rate, Stroke history.