article Open AccessTop 1% cited
Direction and impact of language bias in meta-analyses of controlled trials: empirical study
International Journal of Epidemiology · 2002 · Vol. 31(1) · pp. 115–123
Peter Jüni✉(Medical Research Council)F Holenstein(Institute of Social and Preventive Medicine)Jonathan A C Sterne(University of Bristol)Christopher Bartlett(University of Bristol)Matthias Egger(University of Bristol)
Abstract
This retrospective analysis suggests that excluding trials published in languages other than English has generally little effect on summary treatment effect estimates. The importance of non-English language trials is, however, difficult to predict for individual systematic reviews. Comprehensive literature searches followed by a careful assessment of trial quality are required to assess the contribution of all relevant trials, independent of language of publication.
Meta-analysis and systematic reviewsHealth Systems, Economic Evaluations, Quality of LifeDelphi Technique in ResearchMeta-analysisPublication biasClinical trialEnglish languageMEDLINEMedicinePsychologyPathologyMathematics education
MeSH terms
HumansLanguageRetrospective StudiesMeta-Analysis as TopicRandomized Controlled Trials as TopicPublication BiasEvidence-Based Medicine
Funding
- National Science Foundation
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Health Technology Assessment Programme
Citations
878
FWCI
34.07
field-weighted impact
References
37
Percentile
100%
vs. same field & year
Citations per year
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