May perpetuate variation in prescribing unrelated to patients' need

BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6986.1068a (Published 22 April 1995) Cite this as: BMJ 1995;310:1068

This article has a correction. Please see:

  1. Sarah J Roberts
  1. Lecturer in medical statistics Wolfson Unit of Clinical Pharmacology, University of Newcastle, Newcastle upon Tyne NE2 4HH

    EDITOR,—Measures based on entitlement to free prescriptions because of low income are attractive as indices of deprivation, but there are inherent drawbacks to an index based on the number of prescriptions rather than of people receiving (or entitled to) them.

    Firstly, as David C E F Lloyd and colleagues comment about their proposed low income scheme index, the “deprivation score is calculable but is affected by the individual habits of prescribers.”1 The effect is simply illustrated if different relative prescribing rates (1–3) are used for a population …

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