Association between N-terminal pro B-type natriuretic peptide and day-to-day blood pressure and heart rate variability in a general population: the Ohasama study.

Background:In addition to day-to- dayvariability in blood pressure (BP) or heart rate (HR), N-terminal pro B-type natriuretic peptide(NT-proBNP) has been reported to be a predictor of cardiovascular disease. Here, we tested the hypothesis that day-to- dayBP or HR variability calculated as the intra