Table 3.

Receiver operating characteristic curve and precision-recall curve for the nutritional factors to estimate the probability of sarcopenia.

Variables	Bootstrap ROC curve				PR curve
	AUC	Threshold	Sensitivity	Specificity	AUC
Body mass index	0.83	20.5	0.81	0.74	0.97
Phase angle	0.73	4.46	0.74	0.70	0.96

ROC, receiver operating characteristic; PR, precision-recall; AUC, area under the curve; threshold, the best cut-off score with Youden index.