Letters Papers with industry ties

Classic confounding conflicts

BMJ 2009; 338 doi: http://dx.doi.org/10.1136/bmj.b2397 (Published 15 June 2009) Cite this as: BMJ 2009;338:b2397
  1. Stephen J Evans, professor of pharmacoepidemiology1
  1. 1London School of Hygiene and Tropical Medicine, London WC1E 7HT
  1. stephen.evans{at}lshtm.ac.uk

    The paper by Jagsi et al in Cancer examining conflicts of interest in published clinical cancer research and reported by Tanne may be an example of classic confounding.1 2The industry funded trials may differ from non-industry funded trials in …

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