title: "A delicate diplomatic situation": tobacco industry efforts to gain control of the Framingham Study.
abstract: BACKGROUND
  The Framingham Heart Study (henceforth Framingham) is among the gold standards for epidemiological research. Being a prospective cohort study of 5,000+ men and women, it provided early findings about the causes of coronary heart disease (CHD), following a cohort over the course of 24 years. After US government funding ended, the tobacco industry funded Council for Tobacco Research (CTR) provided continued funding for analyses related to smoking.
  
  
  OBJECTIVE
  This study sought to understand the tobacco industry's motivation and activities in funding Framingham.
  
  
  METHODS
  We analyzed previously undisclosed tobacco industry documents, conducting iterative searches of the Legacy Tobacco Documents Library (http://legacy.library.ucsf.edu/), and assembled a historical case study.
  
  
  RESULTS
  CTR funded Framingham to obtain full access to Framingham data. CTR planned for long-time industry consultant Carl Seltzer to reanalyze them to suggest that tobacco-related morbidity and mortality primarily resulted from "constitutional" factors, such as age or ethnicity. Once data were obtained, CTR terminated funding for the Framingham principal investigator, who disagreed with Seltzer. Seltzer's critical analyses of subsequently published work by the Framingham team created confusion about the association between CHD and cigarette smoking.
  
  
  CONCLUSIONS
  Researchers accepting tobacco industry funding risk losing control of data, analysis, and publication.
authors.affiliation: Department of Physiological Nursing-Gerontology, University of California San Francisco, CA 94143-0610, USA.
authors.forename: Janine K
authors.initials: JK
authors.lastname: Cataldo
authors.forename: Lisa A
authors.initials: LA
authors.lastname: Bero
authors.forename: Ruth E
authors.initials: RE
authors.lastname: Malone
mesh_terms: D035843:Biomedical Research / Q000191:economics*; D015331:Cohort Studies; D016265:Conflict of Interest; D003327:Coronary Disease / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D011641:Public Relations; D012109:Research Support as Topic / Q000191:economics*; D012907:Smoking / Q000009:adverse effects* / Q000453:epidemiology; D019460:Tobacco Industry / Q000191:economics*; D014481:United States / Q000453:epidemiology