Liver injury in patients with COVID-19 in comparison to patients with the pandemic influenza A (H1N1) 2009: a population-based study.

Background: Elevated liver tests in patients with COVID-19 are widely reported. Population-based studies utilizing a validated analysis of drug-induced liver injury (DILI), with a control group of other viral illnesses and follow-up are largely lacking.

Materials And Methods: All hospitalized patients in Iceland with SARS-CoV-2 in 2020 and pandemic influenza A (H1N1) in 2009 were included in this retrospective, population-based study.