Evidence map›Paper›PMID 34879394›Full record

Observational studyBlood advances2022

Reduced cardiovascular morbidity in patients with hemophilia: results of a 5-year multinational prospective study.

Paul Van Der Valk, Michael Makris, Kathelijn Fischer, Robert C Tait, Pratima Chowdary, Peter W Collins, Karina Meijer, Lize F D van Vulpen, Eveline Mauser-Bunschoten, Roger E G Schutgens

Registry-linked trialOpen access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Blood advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01303900 (Cardiovascular Disease in Adult Haemophilia Patients), which is not on this map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.6field-weighted citation impact, top 9% of its field
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.

NCT01303900 unknown statusnot on this map

Cardiovascular Disease in Adult Haemophilia Patients

TypeobservationalSponsorUMC UtrechtRan2009Enrolled750ConditionsHaemophilia, Cardiovascular Disease
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Ageing with Haemophilia: Comorbidities in Focus.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2026
    Review
  3. The aging hemophilia patient.Hematology. American Society of Hematology. Education Program · 2025
    Review
  4. Normalization in hemophilia: conceptual foundations and clinical implications.Research and practice in thrombosis and haemostasis · 2025
    Review
  5. Burden of Haemophilia A in South Korea: A Serial Cross-Sectional Study From 2008 to 2021.Haemophilia : the official journal of the World Federation of Hemophilia · 2025
    Article
  6. Review
  7. Comorbidity and Mortality in Men and Women With Haemophilia in Three Nordic Countries-Comparisons to Matched Controls.Haemophilia : the official journal of the World Federation of Hemophilia · 2025
    Observational
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Gene therapy - are we ready now?Haemophilia : the official journal of the World Federation of Hemophilia · 2022
    Article
  14. 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

10 authors at 6 institutions in 2 countries.

Paul Van Der ValkBenign Hematology Center, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.ORCID 0000-0001-5292-166X
Michael MakrisSheffield Haemophilia and Thrombosis Centre, Royal Hallamshire Hospital, Sheffield, United Kingdom.ORCID 0000-0001-7622-7939
Kathelijn FischerBenign Hematology Center, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.ORCID 0000-0001-7126-6613
Robert C TaitDepartment of Haematology, Royal Infirmary, Glasgow, United Kingdom.ORCID 0000-0003-4842-6783
Pratima ChowdaryKatharine Dormandy Haemophilia and Thrombosis Centre Royal Free Hospital, London, United Kingdom.ORCID 0000-0002-6690-8586
Peter W CollinsArthur Bloom Haemophilia Centre, University Hospital of Wales School of Medicine, Cardiff University, Cardiff, United Kingdom; and.
Karina MeijerDepartment of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands.ORCID 0000-0001-9447-0465
Lize F D van VulpenBenign Hematology Center, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.ORCID 0000-0003-3242-5524
Eveline Mauser-BunschotenBenign Hematology Center, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.
Roger E G SchutgensBenign Hematology Center, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.ORCID 0000-0002-2762-6033
Utrecht University · NLGlasgow Royal Infirmary · GBRoyal Hallamshire Hospital · GBThe Royal Free Hospital · GBUniversity Hospital of Wales · GBUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hemophilia is a congenital bleeding disorder caused by low levels of clotting factor VIII or IX. The life expectancy of people with hemophilia (PWH) has increased with the availability of clotting factor concentrates. At the same time, the incidence of cardiovascular disease (CVD) has increased; in retrospective studies, there are conflicting data regarding if, despite this increase, the incidence is still lower than in the general population. We prospectively compared the incidence of CVD in PWH vs the predicted incidence. This prospective, multicenter, observational study included adult PWH (aged >30 years) from The Netherlands and United Kingdom. They were followed up for a 5-year period, and CVD incidence was compared with a predicted event rate based on the QRISK2-2011 CVD risk model. The primary end point was the observed fatal and nonfatal CVD incidence after 5 years compared with the estimated events and in relation to severity of hemophilia. The study included 709 patients, of whom 687 (96.9%) completed 5 years' follow-up or reached an end point. For 108 patients, the QRISK score could not be calculated at inclusion. For the remaining 579, fewer CVD events were observed than predicted: 9 vs 24 (relative risk, 0.38; 95% confidence interval, 0.18-0.80; P = .01), corresponding with an absolute risk reduction of 2.4%. Severe hemophilia treated on demand had the highest risk reduction. There was no statistically significant relation between severity of hemophilia and incidence of CVD. In hemophilia, a lower-than-predicted CVD incidence was found, supporting the theory that hemophilia protects against CVD. The study is registered at www.clinicaltrials.gov as #NCT01303900.

Indexed as

Cardiovascular DiseasesHemophilia AAdultFactor VIIIHumansProspective StudiesRetrospective StudiesFactor VIII

Identifiers

PMID34879394
PMCPMC8945305
OpenAlexW4200601368

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.