Figure 2.

ROC curve for analysis AF in chronic HF. Pre, prediction probabilities; LAD, left atrial diameter; Phe, phenylalanine; ROC curve, receiver-operating characteristic curve; AF, atrial fibrillation; HF, heart failure.

ROC curve for analysis AF in chronic HF. Pre, prediction probabilities; LAD, left atrial diameter; Phe, phenylalanine; ROC curve, receiver-operating characteristic curve; AF, atrial fibrillation; HF, heart failure.