title: Interface between authorship, industry and science in the domain of therapeutics.
abstract: BACKGROUND
  Changes in the character of medical authorship. Aims To compare the impact of industry-linked and non-industry linked articles.
  
  
  METHODS
  We compared articles on sertraline being coordinated by a medical writing agency with articles not coordinated in this way. We calculated numbers of Medline-listed articles per author, journal impact factors, literature profiles and citation rates of both sets of articles.
  
  
  RESULTS
  Non-agency-linked articles on sertraline had an average of 2.95 authors per article, a mean length of 3.4 pages, a mean Medline listing of 37 articles per author (95% CI 27-47) and a mean literature profile of 283 per article (95% CI 130-435). Agency-linked articles on sertraline had an average of 6.6 authors per article, a mean length of 10.7 pages, a mean Medline listing of 70 articles per author (95% CI 62-79) and a mean literature profile of 1839 per article (95% CI 1076-2602). The citation rate for agency articles was 20.2 (95% CI 13.4-27.0) and for non-agency articles it was 3.7 (95% CI 3.3-8.1).
  
  
  CONCLUSIONS
  The literature profiles and citation rates of industry-linked and non-industry-linked articles differ. The emerging style of authorship in industry-linked articles can deliver good-quality articles, but it raises concerns for the scientific base of therapeutics.
authors.affiliation: North Wales Department of Psychological Medicine, University of Wales College of Medicine, Bangor, UK. Healy_Hergest@compuserve.com
authors.forename: David
authors.initials: D
authors.lastname: Healy
authors.forename: Dinah
authors.initials: D
authors.lastname: Cattell
mesh_terms: D000928:Antidepressive Agents / Q000627:therapeutic use; D001319:Authorship; D004345:Drug Industry; D006801:Humans; D011570:Psychiatry; D011643:Publishing; D012196:Review Literature as Topic; D020280:Sertraline / Q000627:therapeutic use
chemical_list: D000928:Antidepressive Agents; D020280:Sertraline