Evidence map›Paper›PMID 32455503›Full record

ArticleJournal of evaluation in clinical practice2020

Face coverings for the public: Laying straw men to rest.

Trisha Greenhalgh

Abstract read
In one paragraph

Article in Journal of evaluation in clinical practice, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Science for Pandemic Preparedness: A Precautionary Framework.Journal of evaluation in clinical practice · 2025
    Article
  5. Article
  6. Downing the Master's Tools? New Research Strategies to Address Social Determinants of Health Inequalities.International journal of social determinants of health and health services · 2023
    Article
  7. Article
  8. Translating COVID-19: From Contagion to Containment.The Journal of medical humanities · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. An evidence review of face masks against COVID-19.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Review
  16. Just follow the science: A government response to a pandemic.Journal of evaluation in clinical practice · 2020
    Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author.

Trisha GreenhalghNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.ORCID 0000-0003-2369-8088

Funding

National Institute for Health Research BRC-1215-20008Wellcome TrustWellcome Trust WT104830MA
6 · The paper itself

Abstract

Background This article responds to one by Graham Martin and colleagues, who offered a critique of my previous publications on face coverings for the lay public in the Covid-19 pandemic. Their paper reflects criticisms that have been made of face coverings policies more generally. Method Narrative rebuttal. Results I address charges that my coauthors and I had misapplied the precautionary principle; drawn conclusions that were not supported by empirical research; and failed to take account of potential harms But before that, I remind my critics that the evidence on face coverings goes beyond the contested trials and observational studies they place centre stage. I set out some key findings from basic science, epidemiology, mathematical modelling, case studies, and natural experiments, and use this rich and diverse body of evidence as the backdrop for my rebuttal of their narrowly framed objections. I challenge my critics' apparent assumption that a particular kind of systematic review should be valorised over narrative and real-world evidence, since stories are crucial to both our scientific understanding and our moral imagination. Conclusion I conclude by thanking my academic adversaries for the intellectual sparring match, but exhort them to remember our professional accountability to a society in crisis. It is time to lay straw men to rest and embrace the full range of evidence in the context of the perilous threat the world is now facing.

Indexed as

BetacoronavirusCoronavirus InfectionsPandemicsCOVID-19HumansMalePneumonia, ViralSARS-CoV-2evidence-based medicinepublic healthsystematic reviews

Identifiers

PMID32455503
PMCPMC8581764

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.