Retrospective observational study
109
Central Hospital of Wuhan between January 2 and February 1, 2020
Clinical features and progression of acute respiratory distress syndrome in coronavirus disease 2019
0
COVID-19 (severe/critical)
COVID-19 (critical)
Comorbidities
Hypertension
Not present
Present
Odds ratio
1.640 (0.740-3.650)
No