Evidence map›Paper›PMID 33199035›Full record

ArticleSocial science & medicine (1982)2021

How and why patients made Long Covid.

Felicity Callard, Elisa Perego

Abstract read
In one paragraph

Article in Social science & medicine (1982), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 437 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
437citing papers in PubMed, 6 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

437 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Definitions and symptoms of the post-COVID syndrome: an updated systematic umbrella review.European archives of psychiatry and clinical neuroscience · 2025
    Pooled it
  3. Pooled it
  4. Psychosocial Aspects of the Lived Experience of Long COVID: A Systematic Review and Thematic Synthesis of Qualitative Studies.Health expectations : an international journal of public participation in health care and health policy · 2024
    Pooled it
  5. Pooled it
  6. Pooled it
  7. Cost-Effectiveness of a Personalised Self-Management Intervention for People Living With Long Covid: The LISTEN Randomised Controlled Trial.Health expectations : an international journal of public participation in health care and health policy · 2025
    Trial
  8. Trial
  9. Trial
  10. Review
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Article
  17. Co-Creating Publicly Available Resources to Increase Awareness of and Support for Long Covid Among Ethnic Minority Communities.Health expectations : an international journal of public participation in health care and health policy · 2026
    Article
  18. Consortium-Based Patient and Public Involvement and Engagement for Long COVID Research: A Pirit-Focused Impact Evaluation of the PHOSP-COVID Study.Health expectations : an international journal of public participation in health care and health policy · 2026
    Article
  19. Vital yet Fragile: Informal Networks of Support Among Young People Navigating Long Covid.Health expectations : an international journal of public participation in health care and health policy · 2026
    Article
  20. Review

377 more citing papers are in PubMed but not listed here.

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

2 authors.

Felicity CallardUniversity of Glasgow School of Geographical and Earth Sciences, University of Glasgow, United Kingdom. Electronic address: Felicity.callard@glasgow.ac.uk.
Elisa PeregoUniversity College London Institute of Archaeology, UCL, United Kingdom. Electronic address: e.perego@ucl.ac.uk.

Funding

Wellcome Trust 209513/Z/17/Z
6 · The paper itself

Abstract

Patients collectively made Long Covid - and cognate term 'Long-haul Covid' - in the first months of the pandemic. Patients, many with initially 'mild' illness, used various kinds of evidence and advocacy to demonstrate a longer, more complex course of illness than laid out in initial reports from Wuhan. Long Covid has a strong claim to be the first illness created through patients finding one another on Twitter: it moved from patients, through various media, to formal clinical and policy channels in just a few months. This initial mapping of Long Covid - by two patients with this illness - focuses on actors in the UK and USA and demonstrates how patients marshalled epistemic authority. Patient knowledge needs to be incorporated into how COVID-19 is conceptualised, researched, and treated.

Indexed as

Terminology as TopicChronic DiseaseCOVID-19HumansPatientsUnited KingdomUnited StatesChronic illnessCitizen scienceCOVID-19Long CovidLong-haulerPatient activismPatient groupsSARS-CoV-2

Identifiers

PMID33199035
PMCPMC7539940

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.