NPPA and atrial fibrillation: In univariable logistic regression, MR-proANP was not associated with AF recurrence [OR = 1.06 (0.99–1.14), p = 0.09, per 10% increase], which was also the case for NT-proBNP [OR = 1.01 (0.98–1.05), p = 0.38, per 10% increase].