Letter

Allergy after breast feeding

Study was not designed to test the hypothesis

BMJ 2007; 335 doi: 10.1136/bmj.39381.395197.BE (Published 1 November 2007)
Cite this as: BMJ 2007;335:899.1

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  1. Karen M Silvers, senior research fellow,
  2. Michael J Epton, senior lecturer in medicine,
  3. Chris M Frampton, associate professor
  1. University of Otago, Christchurch; PO Box 4345; Christchurch; New Zealand
  1. karen.silvers{at}xtra.co.nz

    The PROBIT study is a large randomised controlled study aimed at reducing childhood gastrointestinal infection by promoting breast feeding. Secondary outcomes included atopic eczema and asthma.1 However, the recent paper was written as if the study's main aim was to test the association between prolonged and exclusive breast feeding and asthma and allergy.2 When no statistical difference was found, the authors erroneously concluded …

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