COVID-19(29) Patient(20) with COVID-19(15) intensive care(12) Mortality(12) heart failure(12) analysed(12) SARS-CoV-2(12) hypertension(12) outcome(11) Effect(11) registration number(11) COVID-19 pandemic(11) 95% CI(10) independent(10) hospitalised patient(9) Myocardial infarction(9) Result(9) Admission(8) Primary outcome(8) COVID-19 infection(8) elevated(8) baseline(8) Biomarkers(8) reduction in(7) age(7) measure(7) median(7) Acute coronary syndrome(7) patients with COVID-19(7)