Policy statement:
Declaration of Competing Interest

This policy statement should be read by all authors, editors, and reviewers submitting or evaluating material for the journal Nicotine & Tobacco Research.


Declaration of Competing Interest and the Credibility
of Nicotine &Tobacco Research

The science of nicotine and tobacco research, as does all science, needs to be beyond reproach. The presence of undeclared sources of support and financial interests has the possibility of undermining the credibility of published work regardless of whether the financial factors emanate from tobacco or non-tobacco industries. The issue of credibility is especially salient in the charged political environment in which this work is published.

The need for authors of papers submitted for peer review in biomedical science journals to declare potential sources of financial conflict of interest is being endorsed to an increasing extent. Studies of the rate of declaration of potential sources of conflict of interest in papers published in journals with stated policies suggest that it is small (1.4%) but growing in recent years. Much has been written recently about the definition of conflict of interest, ways to assess it, and methods of reporting it. The recently revised "Uniform Requirements for Manuscripts Submitted to Biomedical Journals: Writing and Editing for Biomedical Publication," a document developed by the International Committee of Medical Journal Editors, provides us with a basis for editorial policy:

Conflict of Interest exists when an author (or the author's institution), reviewer, or editor has financial or personal relationships with other persons or organizations that inappropriately influence (bias) his or her actions. The existence of such relationships does not necessarily represent true conflict of interest.The potential for conflict of interest can exist whether or not an individual believes that the relationship affects his or her scientific judgment. Financial relationships (such as employment, consultancies, stock ownership, honoraria, paid expert testimony, patents) are the most easily identifiable conflicts of interest and the most likely to undermine the credibility of the journal, the authors, and of science itself.

The revised guidelines continue:

All participants in the peer review and publication process must disclose all relationships that could be viewed as presenting a potential conflict of interest. Disclosure of these relationships is particularly important in connection with editorials and review articles, because bias can be more difficult to detect in those publications than in reports of original research. Editors should publish this information if they believe it will be important to readers in judging the manuscript.

Most recently, some journals are asking authors of original empirical papers to also declare that they have had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. This latter requirement appears to be especially important for industry-sponsored research studies in which the author is not an employee of the sponsoring company.

The stated policy of Nicotine & Tobacco Research is that authors whose manuscripts are accepted for publication must declare all relevant sources of funding in support of the preparation of any paper submitted for peer review. The journal requires full disclosure of financial support, whether it is from the tobacco industry, the pharmaceutical or any other industry, government agencies, foundations, or any other source. [Added in July 2007: This information should be included in the Acknowledgments section of the manuscript, as detailed in the Author Guidelines.]

Nicotine & Tobacco Research has adopted the following additional procedural steps concerning the issue of potential conflict of interest:

For Original Contributions, Brief Reports, Reviews, Letters, and Commentaries, authors of accepted manuscripts will be asked to specify sources of funding for the study and to indicate whether or not the text was reviewed by the sponsor prior to submission, i.e., whether the study was written with full investigator access to all relevant data and whether the sponsor exerted editorial influence over the written text. [Added in July 2007: This information should be included in the cover letter, as detailed in the Author Guidelines.]

In addition to disclosure of direct financial support to the authors or their laboratory and prior sponsor-review of the paper, submitting authors will be asked to disclose all relevant consultancies within the 12 months prior to submission, since the views expressed in the contribution could be influenced by the opinions they have expressed privately as consultants. [Added in July 2007: This information should be included in the Acknowledgments section of the manuscript, as detailed in the Author Guidelines.]

Articles in Nicotine & Tobacco Research are currently published with a small panel at the bottom of the first page describing the authors' affiliations. For all forms of contributions, the authors' affiliations, relevant consultancies, and other potential competing interests also may be published at the editors' discretion.

Editors and reviewers of papers submitted to Nicotine & Tobacco Research will be asked to declare potential competing interests as a matter of standard operating procedure. [Added in July 2007: Reviewers should decline to review any manuscripts for which they have a real or perceived competing interest. It is not necessary for reviewers to complete a formal declaration of icompeting nterests.]

In the event that a previously undisclosed potential competing interest for an author of a published paper comes to the attention of the editors and is subsequently confirmed with the authors, the undeclared interest will be published as an erratum in a future issue. This applies to all papers submitted after December 2001.

David J. K. Balfour, Ph.D.
Editor-in-chief, August 2006 to present; corresponding editor, 1997-2006

Gary E. Swan, Ph.D.
Editor-in-Chief, 1997-July 2006

Written on behalf of the entire editorial board of Nicotine & Tobacco Research on 1 October 2001; modified 19 May 2003, 18 May 2005, and 20 August 2007 to reflect current journal practice.

References