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Receiver operating characteristic (ROC) curves predicting unfavorable outcome of COVID-19 in ICU patients. Receiver operating characteristic (ROC) curves of (a) mHLA-DR, (b) plasma IL-6 and (c) IL-6/mHLA-DR ratio, obtained at baseline (red) and at D7-10 (blue), predicting unfavorable outcome (death) of COVID-19 in ICU patients. Area under the ROC curve with 95% CI are indicated for each parameter.
