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Cochrane Database of Systematic Reviews

Vitamin C for preventing and treating the common cold

Esta versión no es la más reciente

Información

DOI:
https://doi.org/10.1002/14651858.CD000980.pub3Copiar DOI
Base de datos:
  1. Cochrane Database of Systematic Reviews
Versión publicada:
  1. 18 julio 2007see what's new
Tipo:
  1. Intervention
Etapa:
  1. Review
Grupo Editorial Cochrane:
  1. Grupo Cochrane de Infecciones respiratorias agudas

Copyright:
  1. Copyright © 2010 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Autores

  • Harri Hemilä

    Correspondencia a: Department of Public Health, POB 41, University of Helsinki, Helsinki, Finland

    [email protected]

  • Elizabeth Chalker

    Curtin, Australia

  • Bob Douglas

    National Centre for Epidemiology and Population Health, The Australian National University, Canberra, Australia

Contributions of authors

Harri Hemilä (HH) carefully reviewed drafts of the second edition of the review (Douglas 2004), assisted in paper retrieval, proposed alterations to data presentation, checked data entries and contributed significant input to the text. After the 2004 revision, he took over responsibility for future updates of this review.

Elizabeth Chalker (EC) wrote the protocol for the first edition of the review (Douglas 1998), developed the initial search strategy, undertook the searches, organised retrieval of papers, screened papers against inclusion criteria and appraised the quality of papers for the 1998 version. She has been involved in reviewing and rewriting the text for subsequent versions of this review.

Bob Douglas (BD) conceived the review, screened retrieved papers against inclusion criteria, appraised the quality of papers, abstracted data, entered data into RevMan, analysed and interpreted the data, wrote the first version of the review and has participated in updating. He accepted the 2009 update but did not actively participate in the update.

Sources of support

Internal sources

  • Australian National University (until 2004), Australia.

External sources

  • Commonwealth Department of Health and Ageing, Australia.

Declarations of interest

Professor Bob Douglas was co‐ordinating investigator on the Audera 2001 study. None of the other review authors have any conflict of interest to declare in this review.

Acknowledgements

Professor Charles McGilchrist and Dr Keith Dear provided valuable statistical advice, and Ms Robyn Savory and Ms Leonie Hoorweg undertook a range of assistant duties in the first publication of this review. Mr Bob Galloway provided translations for a number of papers for us. Ron D'Souza helped to assemble the update review database and assisted Bob Douglas in re‐screening all papers and quality assessment, but he did not participate in the 2007 update and decided to remove his name in 2007. Barbara Treacy prepared overviews and summaries of published studies in preparation for the first version of the review, and participated in updating the earlier versions, but she did not participate in updating this 2009 version. 

English translations of the Bessel‐Lorck 1958, Ritzel 1961, Kimbarowski 1967 and Bancalari 1984 papers were kindly arranged by Eva Wintergerst from Roche Consumer Health LTD, Kaiseraugst, Switzerland. Finally, the review authors wish to thank the following people for commenting on the 2007 updated review: Hayley Edmonds, Mark Jones and Chris Del Mar; and Sarah Thorning for help in literature searches.

Version history

Published

Title

Stage

Authors

Version

2013 Jan 31

Vitamin C for preventing and treating the common cold

Review

Harri Hemilä, Elizabeth Chalker

https://doi.org/10.1002/14651858.CD000980.pub4

2007 Jul 18

Vitamin C for preventing and treating the common cold

Review

Harri Hemilä, Elizabeth Chalker, Bob Douglas

https://doi.org/10.1002/14651858.CD000980.pub3

2004 Oct 18

Vitamin C for preventing and treating the common cold

Review

R M Douglas, Harri Hemilä, Elizabeth Chalker, R RD D'Souza, Barbara Treacy, Bob Douglas

https://doi.org/10.1002/14651858.CD000980.pub2

1998 Apr 27

Vitamin C for the common cold

Review

Robert M Douglas, E B Chalker, B Treacy

https://doi.org/10.1002/14651858.CD000980

Notes

Full‐text versions of references which are available either free or at the publishers' databases can be accessed via the home page of the contact author, Harri Hemilä: www.ltdk.helsinki.fi/users/hemila/CC/.

In this 2009 update, we calculated meta‐analyses using the fixed‐effect model, whereas the earlier versions used the random‐effects model. Conclusions remain unchanged from the 2007 update.

PICO

Population
Intervention
Comparison
Outcome

El uso y la enseñanza del modelo PICO están muy extendidos en el ámbito de la atención sanitaria basada en la evidencia para formular preguntas y estrategias de búsqueda y para caracterizar estudios o metanálisis clínicos. PICO son las siglas en inglés de cuatro posibles componentes de una pregunta de investigación: paciente, población o problema; intervención; comparación; desenlace (outcome).

Para saber más sobre el uso del modelo PICO, puede consultar el Manual Cochrane.