Evidence map›Paper›PMID 32864554›Full record

ArticleResearch and practice in thrombosis and haemostasis2020

Hemophilia without prophylaxis: Assessment of joint range of motion and factor activity.

Michael Wang, Michael Recht, Neeraj N Iyer, David L Cooper, J Michael Soucie

Open access · goldAbstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.3field-weighted citation impact, top 43% 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.

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

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Race, Ethnicity, and Hemophilia: A Scoping Review.Journal of racial and ethnic health disparities · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Concizumab improves clot formation in hemophilia A under flow.Journal of thrombosis and haemostasis : JTH · 2024
    Article
  9. Article
  10. Hemophilia without prophylaxis: Assessment of joint range of motion and factor activity.Research and practice in thrombosis and haemostasis · 2020
    Article
  11. Haemophilia Joint Health Score Ranges Across the Lifespan: Variation by Haemophilia Type and Severity.Haemophilia : the official journal of the World Federation of Hemophilia
    Article
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

5 authors at 3 institutions in 1 country.

Michael WangHemophilia and Thrombosis Center University of Colorado School of Medicine Aurora Colorado USA.ORCID https://orcid.org/0000-0001-9289-4862
Michael RechtThe Hemophilia Center at Oregon Health & Science University Portland Oregon USA.ORCID https://orcid.org/0000-0002-2805-1016
Neeraj N IyerNovo Nordisk Inc. Clinical, Medical, and Regulatory Affairs Plainsboro New Jersey USA.ORCID https://orcid.org/0000-0001-5544-0263
David L CooperNovo Nordisk Inc. Clinical, Medical, and Regulatory Affairs Plainsboro New Jersey USA.ORCID https://orcid.org/0000-0001-6140-2028
J Michael SoucieCenters for Disease Control and Prevention Atlanta Georgia USA.ORCID https://orcid.org/0000-0002-1563-6824
Novo Nordisk (United States) · USCenters for Disease Control and Prevention · USOregon Health & Science University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecurrent joint bleeding in hemophilia results in arthropathy and functional impairment. The relationship of arthropathy development and factor activity (FA) has not been reported in patients with FA levels <15%-20%.

methodsDuring the Centers for Disease Control and Prevention Universal Data Collection, joint range-of-motion (ROM) measurements were taken at each comprehensive visit. Data were extracted from male patients with hemophilia (PWH) age ≥2 years with baseline factor activity levels ≤40%, excluding those prescribed prophylaxis, and used to calculate a proportion of normal ROM (PN-ROM) measure. Data were analyzed using regression models.

resultsThere were 6703 eligible PWH with 30 102 visits. PN-ROM declined with increasing age, and was associated with hemophilia severity, race/ethnicity, obesity, and viral illnesses. PWH ≥30 years old with fFA ≤2% and those ≥50 years old with FA ≤5% had mean PN-ROM values >10% less than controls; those ≥40 years old with FA <1% had values >20% less than controls. In the multivariable analysis, subjects with <1% FA had a 0.43% greater decrease (-0.49 to -0.37, 95% confidence interval) in PN-ROM each year relative to those with 16%-40% factor activity. A less pronounced effect was seen with 1%-5% or 6%-9% FA.

conclusionThe effect of FA on ROM loss is far greater than that of any of the other characteristics, especially with FA <10%. This emphasizes the need to maintain a high index of suspicion for arthropathy in individuals with moderate and low-mild hemophilia.

Indexed as

arthropathyclotting factorhemophiliajoint diseaserange of motion

Identifiers

PMID32864554
PMCPMC7443428
OpenAlexW3041216165

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.