Evidence map›Paper›PMID 33088183›Full record

ArticleClinical medicine insights. Blood disorders2020

Factors Involved in the Development of Inhibitory Antibodies in Patients with Hemophilia in Colombia: A Case-Control Study.

Jorge E Machado-Alba, Laura A Chica-Quintero, Manuel E Machado-Duque, Andrés Gaviria-Mendoza, Juan David Wilches-Gutierrez, Diana Rocio Arias-Osorio

Open access · diamondAbstract read
In one paragraph

Article in Clinical medicine insights. Blood disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.1field-weighted citation impact, top 50% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Article
4 · The record

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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

6 authors at 1 institution in 1 country.

Jorge E Machado-AlbaGrupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma SA, Pereira, Risaralda, Colombia.ORCID https://orcid.org/0000-0002-8455-0936
Laura A Chica-QuinteroGrupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma SA, Pereira, Risaralda, Colombia.
Manuel E Machado-DuqueGrupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma SA, Pereira, Risaralda, Colombia.
Andrés Gaviria-MendozaGrupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma SA, Pereira, Risaralda, Colombia.
Juan David Wilches-GutierrezIPS-Especializada, Bogotá, Colombia.
Diana Rocio Arias-OsorioIPS-Especializada, Bogotá, Colombia.
Technological University of Pereira · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe appearance of inhibitory antibodies against antihemophilic factors is one of the most serious complications related to hemophilia.

objectiveThe objective of this study was to identify variables and factors related to the development of inhibitory antibodies in a group of patients undergoing antihemophilic therapy in Colombia.

methodsA case-control study in patients with hemophilia treated in Specialized Healthcare Provider Institutions (IPS-E) in 21 cities of Colombia of any age and with a diagnosis of inhibitory antibodies against factor VIII or IX during 2016. Four controls per case paired by age and type of hemophilia were used. Sociodemographic, clinical, and pharmacological variables were identified and analyzed.

resultsSeventeen patients with inhibitory antibodies and 68 controls with hemophilia were identified. The mean age was 28.3 ± 17.8 years. A total of 94.1% had hemophilia A, and 88.2% of the cases and 50.0% of the controls had severe hemophilia; 47.1% of the cases and 54.4% of the controls were receiving prophylaxis with coagulation factors. Multivariate analysis showed that having severe hemophilia (OR:17.0, 95%CI:1.32-219.60) and lack of knowledge of the coagulation factor with which the patient was treated before entering the care program in the IPS-E (OR:8.9, 95%CI:1.82-43.75) were significantly associated with a higher probability of developing inhibitory antibodies. CONCLUSION AND RELEVANCE: Coagulation factors associated with the development of inhibitory antibodies were severe hemophilia and lack of knowledge of the type of factor used prior to entering the follow-up cohort.

Indexed as

blood coagulation factor inhibitorsHemophilia Ahemophilia Bpharmacoepidemiologyrisk factors

Identifiers

PMID33088183
PMCPMC7543110
OpenAlexW3092013159

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