Interarm blood pressure measurement and the reference-arm assignment variability

Objective The arm with the higher blood pressure (BP) is assigned as the follow up arm for hypertensive patients (reference-arm). We evaluated the reproducibility of this assignment. Methods BP was measured simultaneously on both arms with a double cuff validated device in two visits separated <10 days (two sets of three readings per visit). Two reference-arms were assigned in each visit (the arm with higher BP, at least ≥1 mmHg). The intravisit...