dCROX and ROX Indices Predict Clinical Outcomes in Patients with COVID-19 Pneumonia Treated with High-Flow Nasal Cannula Oxygen Therapy

Figure 2

The receiver operating characteristic (ROC) plot of the dCROX index for predicting successful weaning from high-flow nasal cannula therapy within 7 days (a) and 14 days (b). The best cutoff values of the dCROX index to predict HFNC weaning success within 7 and 14 days are 3.78 and 3.15, with the area under the ROC curve of 0.59 and 0.71, respectively.