Among them, 876 received remdesivir and were compared to a control group of 876 age-, sex-, Charlson-comorbidity-index (CCI)- and COVID-19-severity on-admission- matched patients. Because remdesivir was given to respiratory deteriorating patients, matching was performed step-wise depending on maximal oxygen-requirement (patients receiving remdesivir during mechanical ventilation (MV) were matched with patients who required MV, followed by high-flow oxygen therapy (HFOT) etc). All authors read and approved the final manuscript.Ethical approval The study was approved by the University Hospital Dubrava Review Board (nm. 2021/2503-04).Credit authorship contribution statement Petra Bistrovic: Conceptualization, Data curation, Investigation, Methodology, Project administration, Supervision, Validation, Writing – original draft, Writing – review & editing. Marko Lucijanic: Conceptualization, Data curation, Formal analysis, Methodology, Project administration, Supervision, Validation, Writing – original draft, Writing – review & editing.Declaration of Competing Interest The authors declare that they have no conflict of interest.Acknowledgements This paper is a part of the project “Registar hospitalno liječenih bolesnika u Respiracijskom centru KB Dubrava“/“Registry of hospitalized patients in Clinical Hospital Dubrava Respiratory center”.