Table 2.

Classifiers’ performance for the 4 hospital-acquired pressure injury definitions in Medical Information Mart for Intensive Care III over 10 test sets. The results represent the average across test sets with the SD in parenthesis and the P value.

Definition	Gradient boosting				Neural networks
	AUPRCa		AUROCb		AUPRC		AUROC
	Mean (SD)	P value	Mean (SD)	P value	Mean (SD)	P value	Mean (SD)	P value
EHAPI c	0.46 (0.015)	N/Ad	0.90 (0.003)	N/A	0.44 (0.015)	N/A	0.88 (0.004)	N/A
CANTRIPe [10]	0.44 (0.017)	≤.001	0.89 (0.003)	≤.001	0.41 (0.010)	≤.001	0.88 (0.005)	.02
Cramer [6]	0.35 (0.015)	≤.001	0.87 (0.005)	≤.001	0.38 (0.022)	≤.001	0.86 (0.006)	≤.001
Sotoodeh [9]	0.33 (0.015)	≤.001	0.87 (0.004)	≤.001	0.35 (0.015)	≤.001	0.86 (0.006)	≤.001

^aAUPRC: area under the precision-recall curve.

^bAUROC: area under the receiver operating characteristic curve.

^cEHAPI: Emory hospital-acquired pressure injury.

^dN/A: not applicable.

^eCANTRIP: recurrent additive network for temporal risk prediction.