Publication bias in trials registered in the Australian New Zealand Clinical Trials Registry: Is it a problem? A cross-sectional study

• Marian Showell ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: m.showell@auckland.ac.nz

  Affiliation Department of Obstetrics and Gynecology, University of Auckland, Auckland, New Zealand

  https://orcid.org/0000-0002-1227-4303

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• Sam Buckman,

  Roles Conceptualization, Data curation, Investigation, Methodology, Writing – review & editing

  Affiliation Department of Obstetrics and Gynecology, University of Auckland, Auckland, New Zealand

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• Slavica Berber,

  Roles Resources, Writing – review & editing

  Affiliation Evidence Integration, NHMRC Clinical Trials Centre, The University of Sydney, Camperdown, Australia

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• Nada Ata Allah,

  Roles Data curation, Writing – review & editing

  Affiliation Faculty of Medicine, Department of Obstetrics & Gynecology, Aleppo University Hospital, University of Aleppo, Aleppo, Syria

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• Ben Patterson,

  Roles Data curation, Writing – review & editing

  Affiliations Department of Medical Microbiology, St George’s Hospital, London, United Kingdom, Amsterdam Institute of Global Health and Development, University of Amsterdam, Amsterdam, The Netherlands

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• Samantha Cole,

  Roles Data curation, Writing – review & editing

  Affiliation Department of Obstetrics and Gynecology, University of Auckland, Auckland, New Zealand

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• Cynthia Farquhar,

  Roles Conceptualization, Supervision, Writing – review & editing

  Affiliation Department of Obstetrics and Gynecology, University of Auckland, Auckland, New Zealand

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• Vanessa Jordan

  Roles Conceptualization, Data curation, Investigation, Methodology, Project administration, Supervision, Visualization, Writing – review & editing

  Affiliation Department of Obstetrics and Gynecology, University of Auckland, Auckland, New Zealand

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