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Letters Evidence based policy making

How can it be achieved?

BMJ 2011; 342 doi: (Published 05 April 2011) Cite this as: BMJ 2011;342:d2134
  1. Joseph J Lee, academic clinical fellow in paediatric epidemiology1
  1. 1Institute of Child Health, London WC1E 6JP, UK
  1. josephlee{at}

Politicians consider their policies to be evidence based,1 so why are clinicians so dissatisfied with the level of evidence that underpins policies?2

Clearly clinicians and politicians mean different things by “evidence” and “evidence based.” In medicine, expert opinion is derided as level 5 …

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