Document Detail


Early growth velocities and weight gain plasticity improve linear growth in Peruvian infants.
MedLine Citation:
PMID:  23020135     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Growth velocity patterns have the potential to signal unhealthy responses to environmental insults with long-term consequences. We aimed to investigate velocities in Peruvian infants (n = 259) in relation to attained anthropometric outcomes at 12 months and to identify determinants of velocities during critical periods of infancy. From 1995 to 1997, a randomised controlled trial of maternal zinc supplementation was conducted in a peri-urban slum area of Lima. Infants were followed monthly through 1 year on a range of anthropometric measures. Three types of velocity variables were studied: (1) incremental velocity (1 months and 3 months); (2) proportional changes (% of total size gained/month); and (3) individual velocity variability [standard deviation (SD) of individual child incremental velocities]. Mean individual child SD of weight velocity was 417 g (±126). In multivariate ordinary least squares regression analyses, growth velocities in month 1 and individual weight velocity variability positively predicted attained length and weight by 12 months. Panel regression by generalised least-squares with random effects of length and weight velocities confirmed the exponentially decelerating pace of growth through infancy and the importance of birth size in driving this trajectory. This study contributes evidence to support the importance of early growth velocities and greater degrees of weight gain plasticity for attained length and weight.
Authors:
Lora L Iannotti; Nelly Zavaleta; Clara Huasaquiche; Zulema Leon; Laura E Caulfield
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-1
Journal Detail:
Title:  Maternal & child nutrition     Volume:  -     ISSN:  1740-8709     ISO Abbreviation:  Matern Child Nutr     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101201025     Medline TA:  Matern Child Nutr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Blackwell Publishing Ltd.
Affiliation:
Institute for Public Health, Washington University in St. Louis, St. Louis, Missouri, USA.
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