Letter

Sex differences in weight in infancy

BMJ 1996; 313 doi: 10.1136/bmj.313.7070.1486a (Published 7 December 1996)
Cite this as: BMJ 1996;313:1486.2

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Published centile charts for weight have been updated

  1. M A Preece,
  2. J V Freeman,
  3. T J Cole
  1. Professor of child health and growth Institute of Child Health, University College London, London WC1N 1EH
  2. Part time lecturer Medical Care Research Unit, Sheffield S1 4DA
  3. Senior scientist MRC Dunn Nutrition Centre, Cambridge CB4 1XJ

    EDITOR,—Charlotte M Wright and colleagues report a discrepancy between the sexes in weight in infancy1 when the British 1990 growth reference2 was used to standardise the weights of infants in Newcastle upon Tyne. They suggest that this arises from a bias in the growth reference rather than a regional difference in growth.

    We looked for a possible regional effect in a cohort of 7400 babies from West Sussex, who were measured between birth and 35 weeks (courtesy of Dr Ann Wallace). As in Newcastle, …

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