Cited by 716Meta-analysis and systematic reviewsClinical practice guidelines implementationDelphi Technique in Research

Integration of evidence from multiple meta-analyses: a primer on umbrella reviews, treatment networks and multiple treatments meta-analyses

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Ioannidis, J. P.A.·2009·Canadian Medical Association Journal

Abstract

Meta-analysis is an important research design for appraising evidence and guiding medical practice and health policy. [1][1] Meta-analyses draw strength from combining data from many studies. However, even if perfectly done with perfect data, a single meta-analysis that addresses 1 treatment

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  • Evidence of outcomes was classified into four categories following evidence classification criteria.

    “Additionally, we classified evidence of outcomes into four categories following the evidence classification criteria: class I (convincing evidence), class II (highly suggestive evidence), class III (suggestive evidence), class IV (weak evidence), and NS (non-significant).”

    From Dietary sugar consumption and health: umbrella review (2023) · cites this paper as [46]

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Authors
Ioannidis, J. P. A.
Affiliations
University of Ioannina (GR)
Corresponding author
Ioannidis, J. P.A.
Venue
Canadian Medical Association Journal
Published
2009-08-04
Volume
181
Issue
8
Pages
488-493
ISSN
  • 0820-3946 (ISSN-L)
  • 1488-2329
OpenAlex
W2133413753
Cited by
716
References
55
Citations by year
2026: 75 · 2025: 83 · 2024: 75 · 2023: 65 · 2022: 69 · 2021: 54 · 2020: 51 · 2019: 35 · 2018: 42 · 2017: 28 · 2016: 40 · 2015: 20 · 2014: 20 · 2013: 16 · 2012: 21
FWCI
1.06
Type
journal article
Language
en
Open access
Locations
  • Canadian Medical Association Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Clinical practice guidelines implementation
  • Social Sciences › Sociology and Political Science › Delphi Technique in Research
Keywords
umbrella review, treatment networks, evidence integration
MeSH terms
Clinical Trials as Topic, Humans, Meta-Analysis as Topic, Practice Guidelines as Topic, Evidence-Based Medicine

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