NPPB and atrial fibrillation: Alternatively, the cut-off point of NT-proBNP>125pg/ml showed 76.5% sensitivity, 53.8% specificity, 19% PPV, and 94.2% NPV to detect any AF and 52.9% sensitivity, 53.8% specificity, 7.5% PPV, and 94.2% NPV to detect paroxysmal AF.