Cited by 167Blood Pressure and Hypertension StudiesCardiovascular Health and Disease PreventionSodium Intake and Health

Nighttime Blood Pressure Measured by Home Blood Pressure Monitoring as an Independent Predictor of Cardiovascular Events in General Practice: The J-HOP Nocturnal Blood Pressure Study

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Kario, Kazuomi, Kanegae, Hiroshi, Tomitani, Naoko, Okawara, Yukie, Fujiwara, Takeshi, Yano, Yuichiro, Hoshide, Satoshi, on behalf of the J-HOP Study Group·2019·Hypertension

Abstract

We developed an innovative automated home blood pressure (BP) monitoring method that measures BP while asleep repeatedly over several days. Our aim was to assess the predictive ability of nighttime BP obtained using the home BP device for incident cardiovascular disease (CVD) in general practice patients. We used data from the nationwide practice-based J-HOP (Japan Morning Surge–Home Blood Pressure) Nocturnal BP Study, which recruited 2545 Japanese with a history of or risk factors for CVD (mean age 63 years; antihypertensive medication use 83%). The associations between nighttime home BPs (measured at 2:00, 3:00, and 4:00 am using validated, automatic, and oscillometric home BP devices) and incident CVD, including coronary disease and stroke events, were assessed with Cox proportional hazards models. The mean±SD office, morning home, and nighttime home systolic BP (SBP)/diastolic BP were 140±15/82±10, 137±15/79±10, and 121±15/70±9 mm Hg, respectively. During a follow-up of 7.1±3.8 years (18,116 person-years), 152 CVD events occurred. A 10-mm Hg increase of nighttime home SBP was associated with an increased risk of CVD events (hazard ratios [95% CIs]: 1.201 [1.046–1.378]), after adjustments for covariates including office and morning home SBPs. The model fit assessed by the change in Goodness-of-Fit was improved when we added nighttime home SBP into the base models including office and morning home SBPs (Δ6.838 [5.6%]; P =0.009). This is among the first and largest nationwide practice-based study demonstrating that nighttime SBP obtained using a home device is a predictor of incident CVD events, independent of in-office and morning in-home SBP measurement. Clinical Trial Registration—: URL: http://www.umin.ac.jp/icdr/index.html . Unique identifier: UMIN000000894.

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Crossref · 10.1161/hypertensionaha.118.12740

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  • The measurement of asleep BP is made possible by a few models of HBPM, which is better tolerated and provides nocturnal BP readings and predicts cardiovascular events similar to those observed using ABPM.

    “However, the measurement of asleep BP is made possible by a few models of HBPM, which is better tolerated and provides nocturnal BP readings and predicts cardiovascular events similar to those observed using ABPM. 48,61”

    From Effect and Acceptability of Mindfulness-Based Stress Reduction Program on Patients With Elevated Blood Pressure or Hypertension: A Meta-Analysis of Randomized Controlled Trials (2020) · cites this paper as [48]

    The Methods (BP Measurements) describe an HBPM device that takes asleep BP readings, and the Discussion reports that nighttime home BP predicted cardiovascular events, with predictive values that seemed similar to those reported for ABPM. The Discussion and Study Limitations also say the methods were not directly compared and that comparable prognostic prediction remains uncertain. The paper describes discomfort with ABPM but does not establish that the HBPM device was better tolerated or that several models have this capability. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • HBPM with automated atrial fibrillation detector might be useful for early detection of asymptomatic atrial fibrillation in elderly individuals with hypertension.

    “Two studies have shown that HBPM with automated atrial fibrillation detector might be useful for early detection of asymptomatic atrial fibrillation in elderly individuals with hypertension [219,220].”

    From Home blood pressure monitoring: methodology, clinical relevance and practical application: a 2021 position paper by the Working Group on Blood Pressure Monitoring and Cardiovascular Variability of the European Society of Hypertension (2021) · cites this paper as [220]

    The Methods (BP Measurements; page unavailable) describe an automated device for measuring blood pressure, not an atrial-fibrillation detector. The Methods (Study Subjects; page unavailable) mention atrial fibrillation only as a pre-existing cardiovascular risk factor. A search for atrial fibrillation and automated detection found no passage about early detection of asymptomatic atrial fibrillation. (LLM, conf=0.76)

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Authors
Kario, K., Kanegae, H., Tomitani, N., Okawara, Y., Fujiwara, T., Yano, Y., Hoshide, S., & on behalf of the J-HOP Study Group
Affiliations
  • Jichi Medical University (JP)
  • JMU Center of Global Home and Ambulatory BP Analysis (GAP), Tochigi, Japan (Y.O.).
  • JMU Center of Excellence, Community Medicine Cardiovascular Research and Development (JCARD), Tochigi, Japan (K.K., N.T., T.F., Y.Y., S.H.)
Corresponding author
Kario, Kazuomi
Venue
Hypertension
Published
2019-06
Volume
73
Issue
6
Pages
1240-1248
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W2939115855
Cited by
167
References
36
Citations by year
2026: 14 · 2025: 22 · 2024: 19 · 2023: 17 · 2022: 22 · 2021: 31 · 2020: 30 · 2019: 12
FWCI
17.16
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Hypertension (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
Keywords
nocturnal blood pressure, home blood pressure monitoring, cardiovascular events, cardiovascular risk prediction, systolic blood pressure, coronary disease, stroke, general practice patients, antihypertensive drugs, oscillometric blood pressure devices
MeSH terms
Blood Pressure, Cardiovascular Diseases, Circadian Rhythm, Female, Follow-Up Studies, Humans, Japan, Male, Middle Aged, Prognosis, Systole, Time Factors, Incidence, Blood Pressure Monitoring, Ambulatory, General Practice

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