Evidence map›Paper›PMID 34464751›Full record

ArticleThe journal of allergy and clinical immunology. In practice2021

Racial and Ethnic Disparities in the Research and Care of Hereditary Angioedema Patients in the United States.

Sebastian Sylvestre, Timothy Craig, Oyindamola Ajewole, Sansanee Craig, Sundeep Kaur, Taha Al-Shaikhly

Open access · greenAbstract read
In one paragraph

Article in The journal of allergy and clinical immunology. In practice, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
2.2field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Guideline
  2. Prevalence and Incidence of Hereditary Angioedema: A Systematic Literature Review.International archives of allergy and immunology · 2026
    Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Impact of injectable HAE on-demand treatments on health-related quality of life: a patient and caregiver interview study.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Racial and ethnic disparities in biologic prescriptions for asthma in the United States.The journal of allergy and clinical immunology. In practice · 2022
    Article
  12. Effectiveness and safety of lanadelumab in ethnic and racial minority subgroups of patients with hereditary angioedema: results from phase 3 studies.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2022
    Article
  13. 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

6 authors at 2 institutions in 1 country.

Sebastian SylvestreSection of Allergy, Asthma and Immunology, Department of Medicine, Penn State University, Hershey, Pa.
Timothy CraigSection of Allergy, Asthma and Immunology, Department of Medicine, Penn State University, Hershey, Pa.
Oyindamola AjewoleDepartment of Pediatrics, Penn State University, Hershey, Pa.
Sansanee CraigDepartment of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pa.
Sundeep KaurSection of Allergy, Asthma and Immunology, Department of Medicine, Penn State University, Hershey, Pa.
Taha Al-ShaikhlySection of Allergy, Asthma and Immunology, Department of Medicine, Penn State University, Hershey, Pa. Electronic address: talshaikhly@pennstatehealth.psu.edu.
Penn State Milton S. Hershey Medical Center · USChildren's Hospital of Philadelphia · US

Funding

Penn State Clinical and Translational Science InstituteUL1TR002014 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KRASCHNEWSKI, JENNIFER L. · 2016 to 2025
$33.7M
NCATS NIH HHS UL1 TR002014
6 · The paper itself

Abstract

backgroundHereditary angioedema (HAE) affects all races and both sexes equally. Minority patients are underrepresented in clinical trials and may be at risk for additional disease burden.

objectivesTo examine racial and ethnic disparities in the research and care of patients with HAE.

methodsWe conducted a retrospective population-based study using TriNetX Diamond Network. International Classification of Diseases, 10th Revision, Current Procedural Terminology, and RxNorm codes identified patients with HAE. The proportions of White, Black, and Hispanic patients with HAE were contrasted with racial and ethnic distributions of patients with HAE in clinical trials. Lifetime prevalence of mental health disorders and HAE treatments was contrasted among different racial and ethnic groups.

resultsA population-based search identified 2122 patients with HAE. The prevalence of HAE among Black patients (1.64/100,000 patients) mirrored that of White patients (1.47/100,000 patients), whereas there was a lower HAE prevalence among Hispanic patients (0.80/100,000 patients). The demographics of the 1274 patients with HAE included in phase 2/3 clinical trials differed significantly from population-based data with overrepresentation of White patients (89.9% vs 77.9%) and underrepresentation of Black patients (3.8% vs 13.6%) and Hispanic patients (1.3% vs 8.1%). Across the different racial and ethnic groups of patients with HAE, the prevalence of mental health disorders was comparatively higher than among patients without HAE. Whereas depression was equally prevalent across the different HAE racial and ethnic groups, anxiety was more prevalent among White patients.

conclusionsClinical trials for Food and Drug Administration-approved HAE medications underrepresent minority patients. Hereditary angioedema remains underdiagnosed in Hispanic patients. Other than a lower prevalence of anxiety disorders among Black patients relative to White patients, the mental health impact of HAE is equally distributed across the different racial and ethnic groups.

Indexed as

Angioedemas, HereditaryEthnicityFemaleHispanic or LatinoHumansMaleRacial GroupsRetrospective StudiesUnited StatesClinical trialsDisparities in health careHereditary angioedemaMinority recruitmentOrphan diseases

Identifiers

PMID34464751
PMCPMC8671245
OpenAlexW3196785619

What OpenQuestion holds

Textmetadata
LicenceTDM
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.