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To the Editor:We read the interesting recent article by Muntner et al,1 who found that increased visit-to-visit systolic blood pressure (SBP) variability was a significant predictor for all-cause mortality independently of age, sex, and average SBP. On the other hand, in the Letter to the Editor, Ben-Dov et al2 suggested that heart rate (HR) may bear on blood pressure (BP) variability. Bradycardia might be a confounder contributing to apparently increased visit-to-visit BP variability …

Visit-to-Visit Blood Pressure Variability and Carotid Artery Atherosclerosis: Heart Rate Was Not a Confounder