Document Detail

Components of length growth variation in infants from the same population but different environments.
MedLine Citation:
PMID:  11460864     Owner:  NLM     Status:  MEDLINE    
Growth in length of infants in Khartoum is profoundly related to whether or not their mothers are in paid employment. Some of this relationship appears to be due to levels of infectious disease, which are much higher in the infants of working mothers. Exponential decay curves do not fit longitudinal measurements of length growth particularly well in either group of infants, but they do yield distinctive temporal patterns of residuals. Simulation demonstrates that these patterns accord with a "catch-down" form of growth in infants of working mothers and a "catch-up" form in infants of housewives. Attempts to allow for these phenomena by providing for the opportunity of a single pulse of negative sine form in the former and a similar pulse of positive sine form in the latter reduces the level of residuals and tends to reduce temporal pattern in them. Most strikingly, it leads to average growth curves for the two groups of children becoming almost identical. It is hypothesized that these decay curves represent the underlying curves of infant growth in Khartoum free from the effects of environmental variation.
G Brush; G A Harrison
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of human biology : the official journal of the Human Biology Council     Volume:  13     ISSN:  1042-0533     ISO Abbreviation:  Am. J. Hum. Biol.     Publication Date:    2001 Mar-Apr
Date Detail:
Created Date:  2001-07-19     Completed Date:  2001-09-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8915029     Medline TA:  Am J Hum Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  197-203     Citation Subset:  IM    
Institute of Biological Anthropology, University of Oxford, United Kingdom.
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MeSH Terms
Growth / physiology*
Health Status Indicators
Infant, Newborn
Longitudinal Studies
Women, Working / statistics & numerical data*

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