Letter

Need for expertise based randomised controlled trials

BMJ 2005; 330 doi: 10.1136/bmj.330.7494.791-b (Published 31 March 2005)
Cite this as: BMJ 2005;330:791.3

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Expertise based design has shortfalls

  1. Eric Lim (eric.lim@cvsnet.org), specialist registrar
  1. Papworth Hospital, Papworth Everard, Cambridge CB3 8RE

    EDITOR—Devereaux et al discussed the need for expertise based randomised controlled trials for surgical procedures.1

    Firstly, the use of expertise based designs does not necessarily enhance the validity of a surgical trial. Surgical outcome does not depend solely on the operation; other factors that influence the results of an operation are heterogeneous …

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