Retrospective observational study
1099
552 hospitals in China between Dec 11, 2020 to Jan 29, 2020
Clinical Characteristics of Coronavirus Disease 2019 in China
0
COVID-19 (severe/critical)
COVID-19 (critical)
Comorbidities
Hypertension
Not present
Present
Odds ratio
3.530 (2.080-5.990)
No
Yes