Conclusions about differences in linear growth between Bangladeshi boys and girls depend on the growth reference used

H. Moestue, S. de Pee, A. Hall, A. Hye, N. Sultana, M. Z. Ishtiaque, N. Huq, M. W. Bloem

Research output: Contribution to journalArticle

Abstract

Objective: To examine sex differences in height-for-age z-scores and the percentage stunting among Bangladeshi children estimated using three growth references. Design, setting and subjects: Data collected between 1990 and 1999 by Helen Keller International's nutritional surveillance system in rural Bangladesh were analyzed for 504 358 children aged 6-59 months. Height-for-age z-scores were estimated using the 1977 NCHS, 2000 CDC and 1990 British growth references. Results: The shape of the growth curves for Bangladeshi boys and girls, and their positions relative to one another, depend on which of the three growth references is used. At 6 months of age the British reference showed no sex difference whereas the NCHS and CDC showed girls to have higher average z-scores than boys by 0.14 and 0.28 s.d., respectively. While all references showed a faster deterioration of girls' z-scores from 6 to 24 months, the magnitude and direction of the sex differences, and how they changed with age, were different. There was greater disagreement about girls' z-scores than boys. Discontinuities at 24 months in the NCHS and CDC produced jagged curves whereas the British curves were smooth. Conclusions: The assessment of sex differences in linear growth depends on the growth reference used. Reasons for the different results need to be determined and may aid the final development of the new WHO international growth reference and the guidelines for its use. The findings suggest that anthropometry as a tool to explore the effects of societal gender inequality must be used with caution.

Original languageEnglish (US)
Pages (from-to)725-731
Number of pages7
JournalEuropean Journal of Clinical Nutrition
Volume58
Issue number5
DOIs
StatePublished - May 1 2004
Externally publishedYes

Keywords

  • Anthropometry
  • Bangladesh
  • Gender
  • Growth references
  • Linear growth
  • Sex
  • Stunting

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

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