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Publication Of Flu Vaccines Studies In Prestigious Journals Are Determined By The Sponsor

Date:
February 23, 2009
Source:
BMJ-British Medical Journal
Summary:
Industry-sponsored studies on influenza vaccines are published in journals with higher rankings (impact factors) and are cited more than studies with other sponsors, but this is not because they are bigger or better, finds a new study.

Industry-sponsored studies on influenza vaccines are published in journals with higher rankings (impact factors) and are cited more than studies with other sponsors, but this is not because they are bigger or better, finds a study published on the British Medical Journal website.

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Tom Jefferson and colleagues at the Cochrane Vaccine Field in Italy identified and assessed 274 studies on influenza vaccines and analysed their methodological quality, prestige of the host journals (impact factor) and citation rates in the scientific literature.

They found no relationship between study quality, publication in prestige journals or their subsequent citation in other articles. They also found that influenza vaccine studies are of poor quality and those with conclusions in favour of the vaccines are of significantly lower methodological quality.

The single most important determinant of where the studies were published or how much they were cited was sponsorship. Those partially or wholly funded by industry had higher visibility.

The researchers also found no relationship between journal impact factor and the quality of the influenza vaccine studies it publishes, suggesting that the impact factor is not the robust quality indicator that publishers suggest and confirming some of the widely expressed doubts on its appropriateness as a means of rewarding researchers with promotions and funds.

Dr Jefferson concludes: "The study shows that one of the levers for accessing prestige journals is the financial size of your sponsor. Pharmaceutical sponsors order many reprints of studies supporting their products, often with in-house translations into many languages. They will also purchase publicity space on the journal. Many publishers openly advertise these services on their website. It is time journals made a full disclosure of their sources of funding."


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Cite This Page:

BMJ-British Medical Journal. "Publication Of Flu Vaccines Studies In Prestigious Journals Are Determined By The Sponsor." ScienceDaily. ScienceDaily, 23 February 2009. <www.sciencedaily.com/releases/2009/02/090212210731.htm>.
BMJ-British Medical Journal. (2009, February 23). Publication Of Flu Vaccines Studies In Prestigious Journals Are Determined By The Sponsor. ScienceDaily. Retrieved March 30, 2015 from www.sciencedaily.com/releases/2009/02/090212210731.htm
BMJ-British Medical Journal. "Publication Of Flu Vaccines Studies In Prestigious Journals Are Determined By The Sponsor." ScienceDaily. www.sciencedaily.com/releases/2009/02/090212210731.htm (accessed March 30, 2015).

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