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Press Releases Issued by Supplements Industry Organisations and Non-Industry Organisations in Response to Publication of Clinical Research Findings: A Case-Control Study

Author

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  • Michael T M Wang
  • Greg Gamble
  • Mark J Bolland
  • Andrew Grey

Abstract

Background: Dietary supplement use is increasing despite lack of evidence of benefits, or evidence of harm. Press releases issued by the supplements industry might contribute to this situation by using ‘spin’ (strategies to hype or denigrate findings) to distort the results of clinical studies. We assessed press releases issued in response to publication of clinical studies on dietary supplements. Methods and Findings: We analyzed 47 supplements industry press releases and 91 non-industry press releases and news stories, generated in response to 46 clinical studies of dietary supplements published between 1/1/2005 and 5/31/2013. The primary outcome was ‘spin’ content and direction. We also assessed disposition towards use of dietary supplements, reporting of study information, and dissemination of industry press releases. More supplements industry press releases (100%) contained ‘spin’ than non-industry media documents (55%, P 90% of studies that reported no benefit, or harm, of the supplement. Industry press releases less frequently reported study outcomes, sample size, and estimates of effect size than non-industry media documents (all P

Suggested Citation

  • Michael T M Wang & Greg Gamble & Mark J Bolland & Andrew Grey, 2014. "Press Releases Issued by Supplements Industry Organisations and Non-Industry Organisations in Response to Publication of Clinical Research Findings: A Case-Control Study," PLOS ONE, Public Library of Science, vol. 9(7), pages 1-14, July.
    • Handle: RePEc:plo:pone00:0101533
    DOI: 10.1371/journal.pone.0101533
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    References listed on IDEAS

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    1. Amélie Yavchitz & Isabelle Boutron & Aida Bafeta & Ibrahim Marroun & Pierre Charles & Jean Mantz & Philippe Ravaud, 2012. "Misrepresentation of Randomized Controlled Trials in Press Releases and News Coverage: A Cohort Study," PLOS Medicine, Public Library of Science, vol. 9(9), pages 1-11, September.
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    1. Arnaud Vaganay, 2016. "Outcome Reporting Bias in Government-Sponsored Policy Evaluations: A Qualitative Content Analysis of 13 Studies," PLOS ONE, Public Library of Science, vol. 11(9), pages 1-21, September.

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