Key result
Repeated 24-hour ABPM shows excellent population-level SBP reproducibility within ~0.7 mmHg, despite limited intra-individual reliability.
Why the study?
A systematic review on the reproducibility of ambulatory blood pressure measurements (ABPM) had not yet been conducted.
Is 24-h ambulatory blood pressure measurement reproducible in the short term (within 1 month) in participants with or without hypertension?
Meta-Analysis (n=4,058)
Is 24-h ambulatory blood pressure measurement reproducible in the short term (within 1 month) in participants with or without hypertension?
Effect estimate: MD 0.71 mmHg (95% CI -0.08 to 1.51)
While ABPM shows excellent reproducibility at the population level, its intra-individual reproducibility for BP values and dipping status is limited, which may impact clinical decision-making for individual patients.
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Caution for individual ABPM-based decisions due to limited reproducibility; confirms population-level reliability while extending evidence on intra-individual variability.
Bo et al. (2020) conducted a meta-analysis in Hypertension (n=4,058). Repeated 24-hour Ambulatory Blood Pressure Measurement (ABPM) vs. First vs Second ABPM was evaluated on Mean difference in 24-hour systolic blood pressure between first and second ABPM (MD 0.71 mmHg, 95% CI -0.08 to 1.51). Repeated 24-hour ambulatory blood pressure measurements demonstrated excellent population-level reproducibility with a mean difference of 0.71 mmHg for 24-hour systolic blood pressure, though intra-individual reproducibility was limited.
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