Evidence map›Paper›PMID 31948937›Full record

GuidelineBMJ (Clinical research ed.)2020

Synthesis without meta-analysis (SWiM) in systematic reviews: reporting guideline.

Mhairi Campbell, Joanne E McKenzie, Amanda Sowden, Srinivasa Vittal Katikireddi, Sue E Brennan, Simon Ellis, Jamie Hartmann-Boyce, Rebecca Ryan, Sasha Shepperd, James Thomas and 2 more

Abstract readGuideline
PubMed Full text at PMC Publisher
In one paragraph

Guideline in BMJ (Clinical research ed.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2,487 papers, 93 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2,487citing papers in PubMed, 93 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

2,487 citing papers in PubMed, 93 syntheses or guidelines pooled it.

  1. Pooled it
  2. Creatine supplementation in soccer players: a systematic review.Journal of the International Society of Sports Nutrition · 2026
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Exploring Toothbrushing Duration Among Adults: A Systematic Review.International journal of dental hygiene · 2026
    Pooled it
  8. Pooled it
  9. Pooled it
  10. Pooled it
  11. Pooled it
  12. Pooled it
  13. Pooled it
  14. Pooled it
  15. Global cognitive and verbal episodic memory impairment in the post-acute phase of anti-nmdar encephalitis: a systematic review and meta-analysis with narrative synthesis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Pooled it
  16. Pooled it
  17. Pooled it
  18. Pooled it
  19. Pooled it
  20. Pooled it

2,427 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

12 authors.

Mhairi CampbellMRC/CSO Social and Public Health Sciences Unit, University of Glasgow, UK Mhairi.Campbell@glasgow.ac.uk.ORCID 0000-0002-4416-7270
Joanne E McKenzieSchool of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
Amanda SowdenCentre for Reviews and Dissemination, University of York, York, UK.
Srinivasa Vittal KatikireddiMRC/CSO Social and Public Health Sciences Unit, University of Glasgow, UK.
Sue E BrennanSchool of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
Simon EllisCentre for Guidelines, National Institute for Health and Care Excellence, London, UK.
Jamie Hartmann-BoyceNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Rebecca RyanSchool of Psychology and Public Health, La Trobe University, Melbourne, Australia.
Sasha ShepperdNuffield Department of Population Health, University of Oxford, Oxford, UK.
James ThomasEvidence for Policy and Practice Information and Coordinating Centre, University College London, London, UK.
Vivian WelchBruyere Research Institute, Ottawa, Canada.
Hilary ThomsonMRC/CSO Social and Public Health Sciences Unit, University of Glasgow, UK.

Funding

Chief Scientist Office SCAF/15/02Chief Scientist Office SPHSU13Chief Scientist Office SPHSU15Chief Scientist Office SPHSU17Medical Research Council MC_UU_00022/2Medical Research Council MC_UU_12017/13Medical Research Council MC_UU_12017/15
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

Outcome Assessment, Health CareSystematic Reviews as TopicData AccuracyData Interpretation, StatisticalHumansMeta-Analysis as TopicResearch Design

Identifiers

PMID31948937
PMCPMC7190266

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.