Table 3.

Area under the receiver operating characteristic curve for multivariable models when progressively more features are included.

Model	Variables	cvAUC	McFadden’s pseudo R2
Clinical Variables Alone	PMA	0.739	0.067
Clinical Model + 2 Physiologic Variables	PMA + IH 80 + Bradycardia	0.763	0.081
Clinical Model + 2 Physiologic Variables + Ventilator status	PMA + IH 80 + Bradycardia + Vent status	0.782	0.092
Clinical Model + 4 Physiologic Variables + Ventilator status	PMA + IH 80 + Bradycardia + Vent status + Apnea + Periodic Breathing	0.783	0.094

Models with progressively more features are evaluated using 10-fold cross validation for AUC and McFadden’s pseudo R2 to assess model fit. AUC: Area under the receiver operating characteristic curve