Key result
Due to intrinsic blood pressure variability, a patient with a true mean systolic blood pressure of 130 mm Hg has a 64% probability of being misdiagnosed as hypertensive after ten clinic visits.
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Blood pressure variability significantly confounds the diagnosis of hypertension and the assessment of treatment response, suggesting that treatment decisions should be based on overall cardiovascular risk rather than blood pressure thresholds alone.
Tom Marshall (2007) conducted an editorial in Hypertension. Blood pressure variability was evaluated. Due to intrinsic blood pressure variability, a patient with a true mean systolic blood pressure of 130 mm Hg has a 64% probability of being misdiagnosed as hypertensive after ten clinic visits.
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