Letters

Height and risk of cancer

BMJ 1999; 318 doi: http://dx.doi.org/10.1136/bmj.318.7190.1074a (Published 17 April 1999) Cite this as: BMJ 1999;318:1074

Survival selection bias should have been ruled out

  1. Mark McCarthy, Professor of public health ([email protected])
  1. Department of Epidemiology and Public Health, University College London, London WC1E 6BT
  2. University of Bristol, Bristol BS8 2PR
  3. Department of Epidemiology and Public Health, University College London, London WC1E 6BT
  4. Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT

    EDITOR—In two separate cohort studies Gunnell et al1 and Davey Smith et al2 found an association between height and non-smoking related cancers. An accompanying editorial indicates that causality for this association is supported by studies in animals.3 None of the articles, however, examines the possibility of bias from survival selection in the cohort studies.

    Cancer and heart disease are the …

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