Critically Ill patients with COVID‐19 in Hong Kong: a multicentre observational cohort study  –  Hong Kong/COVID‐19  8  descriptive  A case series of 41 hospitalized patients with confirmed infection
30% required critical care admission: developed severe respiratory failure, 10% required mechanical ventilation, 5% needed extracorporeal membrane oxygenation support mortality rate: 15%  −  Primary (28 days): 28 day mortality
Secondary (28 days): vasopressor days, days on mechanical ventilation, sequential organ function assessment score, ECMO use, percentage nitric oxide use, percentage free from oxygen supplement  NCT04285801/Completed, Feb 14‐Feb 25 2020