Association between Prehospital Hypoxemia and Admission to Intensive Care Unit during the COVID-19 Pandemic: A Retrospective Cohort Study.

: The aim of this study was to assess the association between prehospital peripheral oxygen saturation (SpO) and intensive care unit (ICU) admission in confirmed or suspected coronavirus disease 19 (COVID-19) patients. : We carried out a retrospective cohort study on patients requiring prehospital intervention between 11 March 2020 and 4 May 2020. All adult patients in whom a diagnosis of COVID-19 pneumonia was suspected by the prehospital physician were included.