Inconsistent Definitions for Intention-To-Treat in Relation to Missing Outcome Data: Systematic Review of the Methods Literature

• Mohamad Alshurafa ,

  Contributed equally to this work with: Mohamad Alshurafa, Matthias Briel

  Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

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• Matthias Briel ,

  Contributed equally to this work with: Mohamad Alshurafa, Matthias Briel

  * E-mail: brielm@uhbs.ch

  Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland

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• Elie A. Akl,

  Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Departments of Medicine and Family Medicine, State University of New York at Buffalo, Buffalo, United States of America

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• Ted Haines,

  Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

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• Paul Moayyedi,

  Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Department of Medicine, McMaster University, Hamilton, Canada

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• Stephen J. Gentles,

  Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

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• Lorena Rios,

  Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

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• Chau Tran,

  Affiliation Chau Tran Consulting, Toronto, Canada

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• Neera Bhatnagar,

  Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

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• Francois Lamontagne,

  Affiliation Centre de Recherche Clinique Étienne-Le Bel, Université de Sherbrooke, Sherbrooke, Canada

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• Stephen D. Walter,

  Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

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• Gordon H. Guyatt

  Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Department of Medicine, McMaster University, Hamilton, Canada

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