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Table 1 Eight-point ordinal scale

From: Auxora versus standard of care for the treatment of severe or critical COVID-19 pneumonia: results from a randomized controlled trial

Scale Description
1 Death
2 Hospitalized, requiring invasive mechanical ventilation or ECMO
3 Hospitalized, requiring non-invasive mechanical ventilation or high-flow supplemental oxygen
4 Hospitalized, requiring low-flow supplemental oxygen
5 Hospitalized, not requiring supplemental oxygen but requiring ongoing medical care
6 Hospitalized, not requiring supplemental oxygen or ongoing medical care
7 Discharged, requiring supplemental oxygen
8 Discharged, not requiring supplemental oxygen
  1. Efficacy outcome measured with the 8-point ordinal scale included recovery rate defined as the first day the patient satisfied criterion 6, 7, or 8 and change in the 8-point ordinal scale over time
  2. ECMO extracorporeal membrane oxygenation