Why the study?
Does self-measured blood pressure provide more reliable estimates of true blood pressure compared to clinic measurements in patients with essential hypertension?
Does self-measured blood pressure provide more reliable estimates of true blood pressure compared to clinic measurements in patients with essential hypertension?
Self-measured blood pressure at home and work provides more reliable estimates of true blood pressure than clinic measurements, improving the sensitivity of antihypertensive efficacy assessments.
Self-measured BP may yield more reliable estimates than clinic readings in hypertension; leaves open whether it should supplant clinic monitoring in practice or trials.
Self-measured and clinic blood pressure (BP) estimates of patients' true levels of BP were compared as part of a controlled study of stress management training for essential hypertension. Forty-three patients underwent 6 to 9 clinic measurements and made 48 self-measured readings of BP at home and at work before and after treatment. Analyses showed that (a) self-measured BP values at work and at home were significantly correlated with each other but did not correlate with clinic blood pressure measurements at pretreatment, and (b) test-retest correlations over 2 months and intraclass correlations of self-measured BP measures were significantly higher than those of clinic BP measurements. Findings indicated that self-measurement improved the estimations of patients' true levels of BP and improved the sensitivity and feasibility of studies assessing the efficacy of antihypertensive treatments.
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García‐Vera et al. (1999) studied this question.
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