Length of hospital stay and risk of intensive care admission and in-hospital death among COVID-19 patients in Norway : a register-based cohort study comparing patients fully vaccinated with an mRNA vaccine to unvaccinated patients
OBJECTIVES: We estimated the length of stay (LoS) in hospital and the intensive care unit (ICU) and risk of admission to ICU and in-hospital death among COVID-19 patients ≥18 years in Norway who had been fully vaccinated with an mRNA vaccine (at least two doses or one dose and previous SARS-CoV-2 infection), compared to unvaccinated patients.METHODS: Using national registry data, we analyzed SARS-