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The accuracy of 8-hour ambulatory blood pressure monitoring, adjusted to seasons

Journal of Human Hypertension volume 37, pages 141–149 (2023)Cite this article

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Abstract

Ambulatory blood pressure monitoring (ABPM) is considered the most reliable and accurate measurement of blood pressure (BP). However, the use of ABPM has some limitations, which make it difficult to complete for the entire 24 h. We aimed to establish in which part of the day BP measurements are in highest correlation with full ABPM (over 24 h) results. We performed a retrospective cross-sectional study which included 3113 full ABPM. Each ABPM was divided into 6- and 8-hour segments, and mean BP in each time segment was calculated. Linear mix models for describing BP by BP in each time segment were performed. A total of 3113 ABPM measurements carried out on 2676 patients (mean age 57.78 ± 14.74) were included in the study. Linear mix models demonstrated significant association between mean systolic blood pressure (SBP) and diastolic blood pressure (DBP) in full ABPM, and SBP and DBP between 2–10 PM, respectively (SBP: β = 0.902, p < 0.001; DBP: β = 0.839, p < 0.001), adjusted for gender, age, season, and relevant interactions. This section had higher coefficient correlations than other sections which were examined. The study findings indicate high correlation between BP between 2–10 PM, and BP in full-ABPM, by each season. This time segment may be ideal for short-term BP monitoring as an initial screening test and for patients who are unable to complete full ABPM. However, since this time segment does not include nighttime hours, there is a risk of underdiagnosis of non-dipper.

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Fig. 1: Bland Altman plot for differences in full ABPM and 2–10PM per participant.

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Data generated or analyzed during this study can be available from the corresponding author on reasonable request.

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Authors and Affiliations

  1. Department of Epidemiology, Biostatistics and Community Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel

    Sivan Zilka Darbiani & Michael Friger

  2. The Cardiology Department Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel

    Orit Barrett

  3. Nephrology Department and Hypertension Unit, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel

    Anna Basok

  4. Internal Medicine D, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University Jerusalem, Jerusalem, Israel

    Talya Wolak

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  1. Sivan Zilka Darbiani
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  2. Michael Friger
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  4. Anna Basok
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Contributions

SZD—writing the protocol and report, conducting the search, screening potentially eligible studies, extracting and analysing data, interpreting results. MF—was responsible for designing the review protocol, analysing data and interpreting results. OB—She contributed to writing the report, extracting and analysing data, interpreting results. AB—contributed to data extraction and provided feedback on the report. TW—responsible for designing the review protocol, writing the protocol and report interpreting results.

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Correspondence to Talya Wolak.

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Zilka Darbiani, S., Friger, M., Barrett, O. et al. The accuracy of 8-hour ambulatory blood pressure monitoring, adjusted to seasons. J Hum Hypertens 37, 141–149 (2023). https://doi.org/10.1038/s41371-022-00790-x

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