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Comparison of area under the receiver operating characteristic (AUROC) curves for XGBoost models. AUROCs for the boosted tree predictor are presented for 12-, 24-, 48-, and 72-h mortality prediction with training and testing performed on MIMIC data from (A) all ICU patients as well as subpopulations of (B) mechanically ventilated (vented) ICU patients and (C) pneumonia ICU patients.
