Direction and impact of language bias in meta-analyses of controlled trials: empirical study.

By Peter Jüni, F. Holenstein, J. Sterne, C. Bartlett, Matthias Egger. International Journal of Epidemiology, 2002

865 citations recorded by the source corpus.

Subfields: General Health Professions, Public Health, Environmental and Occupational Health, Statistics and Probability

View Paper: https://www.semanticscholar.org/paper/929f91aa690e04a50915dcbc2a498dbe5a639f00

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Citations in the corpus

Reliability and Validity of Commercially Available Wearable Devices for Measuring Steps, Energy Expenditure, and Heart Rate: Systematic Review (2020, background): “effect may be small in general but may be difficult to measure for an individual systematic review [183,184].”
Funnel Plots in Meta-analysis (2004, background): “…affecting the selection of studies for inclusion in meta-analyses include the propensity for the results to affect the language of publication (Jüni et al. 2002); the possibility that results affect the frequency with which a study is cited and, hence, its probability of inclusion in a…”
Physical activity for cancer survivors: meta-analysis of randomised controlled trials (2012, background): “49 In addition, there might also be bias from not blinding the abstractors and reviewers to authors, institutions, and journals.”
Expediting systematic reviews: methods and implications of rapid reviews (2010, background): “found that inclusion of non-English studies typically involved greater efforts to locate, as well as cost and time to translate, but exclusion led to more conservative treatment effect estimates [37].”
Chapter 3 European guidelines for the management of acute nonspecific low back pain in primary care (2006, background): “However, Jüni et al (2002) found that excluding trials published in other languages than English generally has little impact on the overall treatment effect.”
Effects of Nonsteroidal Antiinflammatory Drugs on Patient-controlled Analgesia Morphine Side Effects: Meta-analysis of Randomized Controlled Trials (2005, background): “Although the effect of excluding non– English-language trials on the results of a meta-analysis is unclear, in some cases, excluding trials published in other languages may have little effect on summary treatment effects and may actually result in a more conservative estimate of treatment effect.(46”