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Receiver operating characteristic (ROC) curves to evaluate the diagnostic performance of affected lung area (%) for prediction of intensive care unit (ICU) treatment or intubation in patients with COVID-19. For the endpoint of ICU treatment (dark blue), the area under the curve (AUC) is 85.6% (95% CI: 72.1–100%). For the endpoint of intubation (light blue), the AUC is 71.9% (95% CI: 52.5–91.3%).
