Systematic Review of the Empirical Evidence of Study Publication Bias and Outcome Reporting Bias — An Updated Review

Kerry Dwan; Carrol Gamble; Paula R. Williamson; Jamie J. Kirkham

doi:10.1371/journal.pone.0066844

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Open Access

Peer-reviewed

Research Article

Systematic Review of the Empirical Evidence of Study Publication Bias and Outcome Reporting Bias — An Updated Review

Kerry Dwan ,

* E-mail: kerry.dwan@liverpool.ac.uk

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England
⨯
Carrol Gamble,

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England
⨯
Paula R. Williamson,

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England
⨯
Jamie J. Kirkham, for the Reporting Bias Group

Membership of the Reporting Bias Group is provided in the Acknowledgments.

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England
⨯

Systematic Review of the Empirical Evidence of Study Publication Bias and Outcome Reporting Bias — An Updated Review

Kerry Dwan,
Carrol Gamble,
Paula R. Williamson,
Jamie J. Kirkham

Published: July 5, 2013
https://doi.org/10.1371/journal.pone.0066844

About the Authors

Kerry Dwan

* E-mail: kerry.dwan@liverpool.ac.uk

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England

Carrol Gamble

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England

Paula R. Williamson

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England

Jamie J. Kirkham

Membership of the Reporting Bias Group is provided in the Acknowledgments.

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, England

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: KD. Contributed reagents/materials/analysis tools: RBG. Wrote the paper: KD CG PRW JJK. Conceived and designed the systematic review: KD CG PRW.

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Publication ethics
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Randomized controlled trials
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Medical journals
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Clinical trials
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Drug discovery
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