Evidence map›Paper›PMID 37016607›Full record

ArticleCampbell systematic reviews2020

Guidance for producing a Campbell evidence and gap map.

Howard White, Bianca Albers, Marie Gaarder, Hege Kornør, Julia Littell, Zack Marshall, Christine Mathew, Terri Pigott, Birte Snilstveit, Hugh Waddington and 1 more

Abstract read
In one paragraph

Article in Campbell systematic reviews, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 150 papers, 18 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
150citing papers in PubMed, 18 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

150 citing papers in PubMed, 18 syntheses or guidelines pooled it.

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  8. Health-related quality of life in esophageal cancer: a state-of-the-art review of patient-reported outcomes and an evidence and gap map.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2025
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  11. Recent research in myalgic encephalomyelitis/chronic fatigue syndrome: an evidence map.Health technology assessment (Winchester, England) · 2025
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90 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

11 authors.

Howard WhiteCampbell Collaboration New Delhi India.
Bianca AlbersCentre for Evidence and Implementation London U.K.
Marie GaarderInternational Initiative for Impact Evaluation New Delhi India.
Hege KornørNorwegian Institute of Public Health Oslo Norway.
Julia LittellBryn Mawr College Bryn Mawr PA USA.
Zack MarshallMcGill University Montreal Quebec Canada.
Christine MathewBruyère Research Institute Ottawa Canada.
Terri PigottGeorgia State University Atlanta GA USA.
Birte SnilstveitInternational Initiative for Impact Evaluation London United Kingdom.
Hugh WaddingtonLondon International Development Centre London United Kingdom.
Vivian WelchCampbell Collaboration Ottawa Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evidence and Gap Maps (EGMs) are a systematic evidence synthesis product which display the available evidence relevant to a specific research question. EGMs are produced following the same principles as a systematic reviews, that is: specify a PICOS, a comprehensive search, screening against explicit inclusion and exclusion criteria, and systematic coding, analysis and reporting. This paper provides guidance on producing EGMs for publication in Campbell Systematic Reviews.

Identifiers

PMID37016607
PMCPMC8356343

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.