The AUC for discrimination of newly detected AF for NT-proBNP alone was 0.68 (95% CI 0.56 to 0.79) and for diastolic blood pressure alone was 0.71 (95% CI 0.60 to 0.83), but this difference was not statistically significant (p = 0.8). Here, NPPB is linked to atrial fibrillation.