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Research Article

Reporting of Methodologic Information on Trial Registries for Quality Assessment: A Study of Trial Records Retrieved from the WHO Search Portal

  • Ludovic Reveiz mail,

    lreveiz@yahoo.com

    Affiliation: Research Institute, Sanitas University Foundation, Bogotá, Colombia

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  • An-Wen Chan,

    Affiliation: Women's College Research Institute, University of Toronto, Women's College Hospital, Toronto, Canada

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  • Karmela Krleža-Jerić,

    Affiliation: Knowledge Synthesis and Exchange Branch, Knowledge Translation Portfolio, Canadian Institutes of Health Research, Ottawa, Canada

    X
  • Carlos Eduardo Granados,

    Affiliation: Research Institute, National University of Colombia, Bogotá, Colombia

    X
  • Mariona Pinart,

    Affiliation: Experimental Studies, Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom

    X
  • Itziar Etxeandia,

    Affiliation: Clinical Epidemiology Unit, Cruces Hospital & Osteba-Basque Office for HTA, Department of Health, Bilbao, Spain

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  • Diego Rada,

    Affiliation: Unidad de Investigación de Atención Primaria, Bilbao, Spain

    X
  • Monserrat Martinez,

    Affiliation: Institut de Recerca Biomèdica de Lleida - Universitat de Lleida, Catalonia, Spain

    X
  • Xavier Bonfill,

    Affiliation: Servicio de Epidemiología Clínica y Salud Pública, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain

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  • Andrés Felipe Cardona

    Affiliation: Clinical and Translational Oncology Group, Fundación Santa Fe de Bogotá, Bogotá, Colombia

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  • Published: August 31, 2010
  • DOI: 10.1371/journal.pone.0012484

About the Authors

Ludovic Reveiz
Research Institute, Sanitas University Foundation, Bogotá, Colombia
An-Wen Chan
Women's College Research Institute, University of Toronto, Women's College Hospital, Toronto, Canada
Karmela Krleža-Jerić
Knowledge Synthesis and Exchange Branch, Knowledge Translation Portfolio, Canadian Institutes of Health Research, Ottawa, Canada
Carlos Eduardo Granados
Research Institute, National University of Colombia, Bogotá, Colombia
Mariona Pinart
Experimental Studies, Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
Itziar Etxeandia
Clinical Epidemiology Unit, Cruces Hospital & Osteba-Basque Office for HTA, Department of Health, Bilbao, Spain
Diego Rada
Unidad de Investigación de Atención Primaria, Bilbao, Spain
Monserrat Martinez
Institut de Recerca Biomèdica de Lleida - Universitat de Lleida, Catalonia, Spain
Xavier Bonfill
Servicio de Epidemiología Clínica y Salud Pública, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
Andrés Felipe Cardona
Clinical and Translational Oncology Group, Fundación Santa Fe de Bogotá, Bogotá, Colombia

Corresponding Author

Email: lreveiz@yahoo.com

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LR AWC KKJ CEG MP IE DR MM XB AFC. Performed the experiments: LR AWC KKJ CEG MP IE DR MM AFC. Analyzed the data: LR AWC KKJ CEG MP IE DR MM XB AFC. Contributed reagents/materials/analysis tools: LR AWC KKJ CEG MP IE DR MM AFC. Wrote the paper: LR AWC KKJ CEG MP IE DR MM XB AFC.