Letters

Authors' reply

BMJ 1995; 310 doi: http://dx.doi.org/10.1136/bmj.310.6971.57c (Published 07 January 1995) Cite this as: BMJ 1995;310:57
  1. D John Done,
  2. Timothy J Crow,
  3. Amanda Sacker,
  4. Eve C Johnstone
  1. Senior lecturer Department of Psychology, University of Hertfordshire, Hatfield, Hertfordshire AL10 9AB
  2. Head of division Research worker Division of Psychiatry, Clinical Research Centre, Harrow, Middlesex HA1 3UJ
  3. Professor Department of Psychiatry, Royal Edinburgh Hospital, Edinburgh EH10 5HF

    EDITOR,—John Temple suggests that our data do not permit us to discuss rates of development. We agree that extrapolating from two datapoints to derive a statement about rate is unwise. We do, however, have additional information—namely, that psychotic behaviour was documented in adult life. The children did not manifest psychotic symptoms, but these symptoms developed some 15 or more years later, rather than emerging spontaneously. In …

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