Evidence map›Paper›PMID 33744354›Full record

ArticleJournal of the American Academy of Dermatology2021

The risk of COVID-19 in patients with bullous pemphigoid and pemphigus: A population-based cohort study.

Khalaf Kridin, Yochai Schonmann, Orly Weinstein, Enno Schmidt, Ralf J Ludwig, Arnon D Cohen

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Academy of Dermatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  5. Review
  6. Editorial: Autoimmune pre-disease.Frontiers in immunology · 2023
    Article
  7. Article
  8. Autoimmune bullous dermatoses associated with COVID-19 outbreak in Russian patients: a single case series.Journal of the European Academy of Dermatology and Venereology : JEADV · 2022
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Epidemiology of Pemphigus.JID innovations : skin science from molecules to population health · 2021
    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

6 authors at 3 institutions in 2 countries.

Khalaf KridinLübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany; Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel. Electronic address: dr_kridin@hotmail.com.
Yochai SchonmannClalit Health Services, Tel-Aviv, Israel.
Orly WeinsteinClalit Health Services, Tel-Aviv, Israel; Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.
Enno SchmidtLübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany.
Ralf J LudwigLübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany.
Arnon D CohenClalit Health Services, Tel-Aviv, Israel; Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.
University of Lübeck · DEClalit Health Services · ILBen-Gurion University of the Negev · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe burden of COVID-19 in patients with bullous pemphigoid (BP) and pemphigus is yet to be evaluated.

objectiveTo assess the risks of COVID-19 and COVID-19-associated hospitalization and mortality in patients with BP and pemphigus and to delineate determinants of severe COVID-19 illness among these patients.

methodsA population-based cohort study compared COVID-19 and its complications in patients with BP (n = 1845) and pemphigus (n = 1236) with age-, sex-, and ethnicity-matched control subjects.

resultsThe risks of COVID-19 (hazard rate [HR], 1.12; 95% confidence interval [CI], 0.72-1.73; P = .691) and COVID-19-associated hospitalization (HR, 1.58; 95% CI, 0.84-2.98; P = .160) was comparable between patients with BP and controls. The risk of COVID-19-associated mortality was higher among patients with BP (HR, 2.82; 95% CI, 1.15-6.92; P = .023). The risk of COVID-19 (HR, 0.81; 95% CI, 0.44-1.49; P = .496), COVID-19-associated hospitalization (HR, 1.41; 95% CI, 0.53-3.76; P = .499), and COVID-19-associated mortality (HR, 1.33; 95% CI, 0.15-11.92; P = .789) was similar in patients with pemphigus and their controls. Systemic corticosteroids and immunosuppressants did not predispose COVID-19-positive BP and pemphigus patients to a more severe illness. LIMITATIONS: Retrospective data collection.

conclusionsPatients with BP experience increased COVID-19-associated mortality and should be monitored closely. Maintaining systemic corticosteroids and immunosuppressive adjuvant agents during the pandemic is not associated with worse outcomes.

Indexed as

AdultAgedAged, 80 and overCohort StudiesCOVID-19FemaleHospitalizationHumansMaleMiddle AgedPemphigoid, BullousPemphigusRetrospective StudiesRisk Factorsbullous pemphigoidcoronavirus disease 2019COVID-19hospitalizationmortalitypemphigus

Identifiers

PMID33744354
PMCPMC7968167
OpenAlexW3134861807

What Socratic 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 Socratic graph.