[ROX index, high-flow oxygen therapy and COVID-19 pneumonia].

Introduction: The objective was to evaluate the predictive value of the ROX index and describe the evolution of a population of patients admitted to intensive care for COVID-19 pneumonia who required high-flow oxygen therapy.

Methods: Retrospective cohort study in patients older than 18 years with a positive nasopharyngeal swab for SARS-COV-2 who were admitted to intensive care unit with acute respiratory failure and required high-flow oxygen therapy for > 2 hours.

Results: Of a total of 97 patients, 42 (43.