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Fig. 1 | International Journal of Emergency Medicine

Fig. 1

From: Clinical characteristics and mortality associated with COVID-19 at high altitude: a cohort of 5161 patients in Bogotá, Colombia

Fig. 1

Need for invasive mechanical ventilation in patients with COVID-19, classification and regression tree (CART) risk groups: this method built a predictive model and five clinical profiles using the oxygen saturation to inspired oxygen fraction (SaO2/FiO2) ratio at 48 h after admission, age, lactate dehydrogenase (LDH), and chronic obstructive pulmonary disease (COPD) as predictor variables

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