Visit-to-visit blood pressure variability is common in primary care patients: Retrospective cohort study of 221,803 adults

Figures

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  Fig 1. Average standard deviations between visits for systolic blood pressure in patients with vs. without hypertension. Legend: Each data point represents the mean SD for one patient’s SBP between visits. The mean SD for SBP in individuals without hypertension was 8.2 and for hypertensive patients was 11.3. The red line represents a SBP SD of 13.0 mm Hg (thus values to the right of this represent patients with “high BPV”).

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  Fig 2. Average standard deviations between visits for systolic blood pressure in patients with vs. without hypertension, by age and drug treatment. Red: Hypertension treated with both thiazide and/or CCB and one or more of ACEi, ARB, BB, adrenergic antagonist therapy. Gold: Hypertension treated with one or more of ACEi, ARB, BB, adrenergic antagonist only. Green: Hypertension treated with thiazide and/or CCB only. Blue: Hypertension treated without thiazide, CCB, ACEi, ARB, BB, or adrenergic antagonist therapy. Purple: No Hypertension.

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  Fig 3. Frequency of high blood pressure variability in adults, subdivided by age, hypertension status, and drug treatment.