Table 1

WHO CPS among hospitalised patients

Patient stateDescriptorScore
Hospitalised: moderate diseaseHospitalised; no oxygen therapy4
Hospitalised; oxygen by mask or nasal prongs5
Hospitalised: severe diseaseHospitalised; oxygen by non-invasive ventilation or high flow6
Intubation and mechanical ventilation with pO2/FiO2≥150 or SpO2/FiO2≥2007
Mechanical ventilation with pO2/FiO2<150 (SpO2/FiO2<200) or vasopressors8
Mechanical ventilation, with pO2/FiO2<150 (SpO2/FiO2<200) and vasopressors, dialysis or extracorporeal membrane oxygenation9
DeadDead10
  • Adapted from Marshall et al.34

  • FiO2, fraction of inspired oxygen; pO2, partial pressure of oxygen; SpO2, arterial oxyhaemoglobin saturation; WHO CPS, WHO Clinical Progression Scale.