Retrospective observational study
275
mainland China outside of Hubei Province, from December 18th, 2019 to March 8, 2027
History of coronary heart disease increases the mortality rate of COVID-19 patients: a nested case-control study
0
COVID-19 (death)
Comorbidities
Renal failure
Not present
Present
Hazard ratio
2.300 (0.900-6.000)
No