Letters

If it doesn't work, stop it

BMJ 2004; 328 doi: https://doi.org/10.1136/bmj.328.7446.1015-a (Published 22 April 2004) Cite this as: BMJ 2004;328:1015

Medicine is a science of prediction and intervention

  1. Ludovic Reveiz, coordinator of general practice (lureveiz@colsanitas.com)
  1. Colsánitas, Cons Clínica Reina Sofía, Bogota, Colombia

    EDITOR—Assessing effectiveness and benefit in epidemiological studies entails several degrees of imprecision and uncertainty at the individual level while its estimator is defined for a population. A single disease entity may have varied manifestations in different patients and divergent outcomes.1


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    As Anderson and Groves emphasise,2 Archie Cochrane …

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