Health promotion in general practice

BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6978.532c (Published 25 February 1995) Cite this as: BMJ 1995;310:532

Any beneficial effect was lost in background statistical noise

  1. A S Wierzbicki,
  2. T M Reynolds
  1. Lecturer in chemical pathology Charing Cross and Westminster Medical School, Chelsea and Westminster Hospital, London SW10 9NH
  2. Consultant chemical pathologist Burton Hospitals, Burton on Trent DE13 0RB

    EDITOR,—We are confused about the methods that M E Cupples and A McKnight used in their study of health promotion in general practice.1 The sole criterion for inclusion in the study was angina, and the protocol seems not to have excluded those patients with previous myocardial infarcts, in whom low concentrations of cholesterol have been shown to be beneficial.2 The criterion chosen to indicate a successful outcome seems arbitrary and excessive: a more than 50% reduction in the incidence of angina in two years. Yet, even given this limitation, the death …

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