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Plots of mean (A) systolic and (B) diastolic BP difference versus NHANES arm circumference (m = 85). Differences were calculated by subtracting valid ABPS BP measurements by their corresponding reference BP measurements. The average of three BP differences for each of the 85 participants is plotted against the participant’s arm circumference measured by the NHANES method. Indications for mean (X̄m) ± 2Sm are shown.
