Evidence map›Paper›PMID 34232677›Full record

ArticleHypertension (Dallas, Tex. : 1979)2021

Missing Verification of Source Data in Hypertension Research: The HYGIA PROJECT in Perspective.

Mattias Brunström, Sverre E Kjeldsen, Reinhold Kreutz, Knut Gjesdal, Krzysztof Narkiewicz, Michel Burnier, Suzanne Oparil, Giuseppe Mancia

Abstract readComment
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Timing of antihypertensive medication (bedtimeFrontiers in pharmacology · 2026
    Pooled it
  3. Evening versus morning dosing regimen drug therapy for hypertension.The Cochrane database of systematic reviews · 2024
    Pooled it
  4. Trial
  5. Trial
  6. Review
  7. Impact of obstructive sleep apnoea on nocturnal blood pressure: mechanisms and treatment responses - a narrative review.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  8. 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. Review
  11. Isolated Morning Hypertension is a Predictor of Cardiovascular Events in Treated and Well Controlled Hypertensive Patients.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2025
    Article
  12. Review
  13. Review
  14. Randomized Clinical Outcome Trials in Hypertension.Hypertension (Dallas, Tex. : 1979) · 2024
    Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. The Circadian Biology of Heart Failure.Circulation research · 2023
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Mattias BrunströmDepartment of Public Health and Clinical Medicine, Umeå University, Sweden (M. Brunström).
Sverre E KjeldsenDepartment of Cardiology, University of Oslo, Ullevaal Hospital, Norway (S.E.K., K.G.).
Reinhold KreutzDepartment of Clinical Pharmacology and Toxicology, Charité Medical University, Berlin, Germany (R.K.).
Knut GjesdalDepartment of Cardiology, University of Oslo, Ullevaal Hospital, Norway (S.E.K., K.G.).
Krzysztof NarkiewiczDepartment of Hypertension and Diabetology, Medical University of Gdansk, Poland (K.N.).
Michel BurnierService of Nephrology and Hypertension, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (M. Burnier).
Suzanne OparilVascular Biology and Hypertension Program, Department of Medicine, University of Alabama, Birmingham (S.O.).
Giuseppe ManciaUniversity of Milano-Bicocca, Milan, Italy (G.M.).

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

HypertensionBlood Pressure Monitoring, AmbulatoryHumansantihypertensive agentsarticle retractionblood pressurechronotherapydrug therapy

Identifiers

PMID34232677
PMCPMC8260337

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.