Evidence map›Paper›PMID 33052324›Full record

ArticleEClinicalMedicine2020

A case-control and cohort study to determine the relationship between ethnic background and severe COVID-19.

Rosita Zakeri, Rebecca Bendayan, Mark Ashworth, Daniel M Bean, Hiten Dodhia, Stevo Durbaba, Kevin O'Gallagher, Claire Palmer, Vasa Curcin, Elizabeth Aitken and 8 more

Open access · goldAbstract read
In one paragraph

Article in EClinicalMedicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Association of COVID-19 with Comorbidities: An Update.ACS pharmacology & translational science · 2023
    Review
  7. COVID-19 and diabetes in 2020: a systematic review.Journal of pharmaceutical policy and practice · 2023
    Review
  8. Article
  9. Review
  10. Waning Effectiveness of the BNT162b2 Vaccine Against Infection in Adolescents in Israel.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Waning Effectiveness of the BNT162b2 Vaccine Against Infection in Adolescents.medRxiv : the preprint server for health sciences · 2022
    Article
  16. Observational
  17. Observational
  18. Article
  19. Article
  20. 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

18 authors at 3 institutions in 1 country.

Rosita ZakeriSchool of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre, 125 Coldharbour Lane, London SE5 9NU, UK.
Rebecca BendayanDepartment of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
Mark AshworthSchool of Population Health and Environmental Sciences, King's College London, UK.
Daniel M BeanDepartment of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
Hiten DodhiaSchool of Population Health and Environmental Sciences, King's College London, UK.
Stevo DurbabaSchool of Population Health and Environmental Sciences, King's College London, UK.
Kevin O'GallagherSchool of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre, 125 Coldharbour Lane, London SE5 9NU, UK.
Claire PalmerKing's College Hospital NHS Foundation Trust, London, UK.
Vasa CurcinSchool of Population Health and Environmental Sciences, King's College London, UK.
Elizabeth AitkenLewisham and Greenwich NHS Trust, London, UK.
William BernalKing's College Hospital NHS Foundation Trust, London, UK.
Richard D BarkerKing's College Hospital NHS Foundation Trust, London, UK.
Sam NortonCentre for Rheumatic Disease, School of Immunology and Microbial Sciences, King's College London, UK.
Martin GullifordSchool of Population Health and Environmental Sciences, King's College London, UK.
James T H TeoKing's College Hospital NHS Foundation Trust, London, UK.
James GallowayCentre for Rheumatic Disease, School of Immunology and Microbial Sciences, King's College London, UK.
Richard J B DobsonDepartment of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
Ajay M ShahSchool of Cardiovascular Medicine and Sciences, James Black Centre, King's College London British Heart Foundation Centre, 125 Coldharbour Lane, London SE5 9NU, UK.
King's College London · GBKing's College Hospital NHS Foundation Trust · GBLewisham and Greenwich NHS Trust · GB

Funding

Department of Health 05/40/04Department of Health RP-PG-0407-10314Medical Research Council G0902393Medical Research Council MC_PC_13041Medical Research Council MC_PC_17214Medical Research Council MR/K006584/1Medical Research Council MR/M501633/2Medical Research Council MR/S00310X/1
6 · The paper itself

Abstract

backgroundPeople of minority ethnic backgrounds may be disproportionately affected by severe COVID-19. Whether this relates to increased infection risk, more severe disease progression, or worse in-hospital survival is unknown. The contribution of comorbidities or socioeconomic deprivation to ethnic patterning of outcomes is also unclear.

methodsWe conducted a case-control and a cohort study in an inner city primary and secondary care setting to examine whether ethnic background affects the risk of hospital admission with severe COVID-19 and/or in-hospital mortality. Inner city adult residents admitted to hospital with confirmed COVID-19 (

findingsThe 872 cases comprised 48.1% Black, 33.7% White, 12.6% Mixed/Other and 5.6% Asian patients. In conditional logistic regression analyses, Black and Mixed/Other ethnicity were associated with higher admission risk than white (OR 3.12 [95% CI 2.63-3.71] and 2.97 [2.30-3.85] respectively). Adjustment for comorbidities and deprivation modestly attenuated the association (OR 2.24 [1.83-2.74] for Black, 2.70 [2.03-3.59] for Mixed/Other). Asian ethnicity was not associated with higher admission risk (adjusted OR 1.01 [0.70-1.46]). In the cohort study of 1827 patients, 455 (28.9%) died over a median (IQR) of 8 (4-16) days. Age and male sex, but not Black (adjusted HR 1.06 [0.82-1.37]) or Mixed/Other ethnicity (adjusted HR 0.72 [0.47-1.10]), were associated with in-hospital mortality. Asian ethnicity was associated with higher in-hospital mortality but with a large confidence interval (adjusted HR 1.71 [1.15-2.56]).

interpretationBlack and Mixed ethnicity are independently associated with greater admission risk with COVID-19 and may be risk factors for development of severe disease, but do not affect in-hospital mortality risk. Comorbidities and socioeconomic factors only partly account for this and additional ethnicity-related factors may play a large role. The impact of COVID-19 may be different in Asians.

fundingBritish Heart Foundation; the National Institute for Health Research; Health Data Research UK.

Indexed as

Case-control studyComorbiditiesCOVID-19DeprivationEthnicity

Identifiers

PMID33052324
PMCPMC7545271
OpenAlexW3092643927

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.