![]() The ratio of partial pressure arterial oxygen (PaO 2 ) to fraction inspired oxygen (FiO 2 ), or the P/F ratio, upon ICU admission was 105 (IQR 77–146) and 137 (IQR 91–199) in the deceased and survivors, respectively. Of 898 patients who received IMV, 613 (68%) of them perished. ![]() The intensive care unit (ICU) received 1223 patients (24%). ![]() The median cohort age was 66 years (interquartile range (IQR) 53–77), with 1305 patients dying (25%) and 3856 surviving (75%). An independent predictive model was performed for mortality and invasive mechanical ventilation (IMV) using classification and regression trees (CART). Data were compared between survivors and nonsurvivors. Demographic data, laboratory values, comorbidities, oxygenation indices, and clinical outcomes were collected. This was an observational study of a cohort including 5161 patients with confirmed COVID-19 infection from 19 March 2020 to 30 April 2021. To describe the clinical characteristics and mortality of patients with COVID-19 treated at a high complexity hospital in Bogotá, Colombia, at 2640 masl. ![]() There are few data on the clinical outcomes of patients with coronavirus disease 2019 (COVID-19) in cities over 1000 m above sea level (masl). ![]()
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