Evidence map›Paper›PMID 29728372›Full record

Observational studyJournal of the American Heart Association2018

Association Between Amplitude of Seasonal Variation in Self-Measured Home Blood Pressure and Cardiovascular Outcomes: HOMED-BP (Hypertension Objective Treatment Based on Measurement By Electrical Devices of Blood Pressure) Study.

Tomohiro Hanazawa, Kei Asayama, Daisuke Watabe, Ayumi Tanabe, Michihiro Satoh, Ryusuke Inoue, Azusa Hara, Taku Obara, Masahiro Kikuya, Kyoko Nomura and 4 more

Abstract readComparative StudyMulticenter StudyObservational Study
In one paragraph

Observational study in Journal of the American Heart Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. The Japanese Society of Hypertension Guidelines for the Management of Hypertension (JSH 2019).Hypertension research : official journal of the Japanese Society of Hypertension · 2019
    Guideline
  2. Effects of low-intensity isometric handgrip training on home blood pressure in hypertensive patients: a randomized controlled trial.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Trial
  3. The Japanese Society of Hypertension Practical Consensus Guidelines for Seasonal Blood Pressure Management.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Article
  4. Seasonal variation in day-to-day blood pressure variability: large-scale within-individual home blood pressure data.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Article
  5. 2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA/ASPC/NMA/PCNA/SGIM guideline for the prevention, detection, evaluation and management of high blood pressure in adults: a commentary from the European Renal Best Practice (ERBP).Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2026
    Article
  6. Review
  7. Review
  8. Current hypertension epidemiology and contemporary approaches using the "Real-World Evidence Cycle" framework.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Review
  9. The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025).Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Article
  10. Article
  11. Review
  12. Seasonal variation in blood pressure and its impact on target organ damage and cardiovascular disease incidence.Hypertension research : official journal of the Japanese Society of Hypertension · 2023
    Article
  13. Review
  14. Observational
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Seasonal variation in blood pressure: current evidence and recommendations for hypertension management.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Tomohiro HanazawaDepartment of Planning for Drug Development and Clinical Evaluation, Tohoku University Graduate School of Pharmaceutical Sciences, Sendai, Japan.
Kei AsayamaDepartment of Planning for Drug Development and Clinical Evaluation, Tohoku University Graduate School of Pharmaceutical Sciences, Sendai, Japan kei@asayama.org.
Daisuke WatabeDepartment of Planning for Drug Development and Clinical Evaluation, Tohoku University Graduate School of Pharmaceutical Sciences, Sendai, Japan.
Ayumi TanabeDepartment of Preventive Medicine and Public Health, School of Medicine, Keio University, Tokyo, Japan.
Michihiro SatohDivision of Public Health, Hygiene and Epidemiology, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, Japan.
Ryusuke InoueDepartment of Medical Informatics, Tohoku University Graduate School of Medicine, Sendai, Japan.
Azusa HaraDepartment of Social Pharmacy and Public Health, Showa Pharmaceutical University, Tokyo, Japan.
Taku ObaraDepartment of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization Tohoku University, Sendai, Japan.
Masahiro KikuyaDepartment of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan.
Kyoko NomuraDepartment of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan.
Hirohito MetokiDivision of Public Health, Hygiene and Epidemiology, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, Japan.
Yutaka ImaiDepartment of Planning for Drug Development and Clinical Evaluation, Tohoku University Graduate School of Pharmaceutical Sciences, Sendai, Japan.
Takayoshi OhkuboDepartment of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan.
HOMED‐BP (Hypertension Objective Treatment Based on Measurement by Electrical Devices of Blood Pressure) Investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe clinical significance of long-term seasonal variations in self-measured home blood pressure (BP) has not been elucidated for the cardiovascular disease prevention. METHODS AND

resultsEligible 2787 patients were classified into 4 groups according to the magnitude of their seasonal variation in home BP, defined as an average of all increases in home BP from summer (July-August) to winter (January-February) combined with all decreases from winter to summer throughout the follow-up period, namely inverse- (systolic/diastolic, <0/<0 mm Hg), small- (0-4.8/0-2.4 mm Hg), middle- (4.8-9.1/2.4-4.5 mm Hg), or large- (≥9.1/≥4.5 mm Hg) variation groups. The overall cardiovascular risks illustrated U-shaped relationships across the groups, and hazard ratios for all cardiovascular outcomes compared with the small-variation group were 3.07 (

conclusionsThe small-to-middle seasonal variation in home BP (0-9.1/0-4.5 mm Hg), which may be partially attributed to earlier adjustment of antihypertensive medication, were associated with better cardiovascular outcomes.

Indexed as

Blood PressureSeasonsAgedAntihypertensive AgentsBlood Pressure Monitoring, AmbulatoryFemaleHumansHypertensionJapanMaleMiddle AgedPredictive Value of TestsPrognosisRandomized Controlled Trials as TopicReproducibility of ResultsTime FactorsAntihypertensive Agentscardiovascular outcomeshome blood pressurehypertensionpopulation studiesseasonal variation

Identifiers

PMID29728372
PMCPMC6015300

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.