Document Detail

Body mass index, adiposity rebound and early feeding in a longitudinal cohort (Raine Study).
MedLine Citation:
PMID:  20351733     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: This study examined the influence of type and duration of infant feeding on adiposity rebound and the tracking of body mass index (BMI) from birth to 14 years of age.
METHODS: A sample of 1330 individuals over eight follows-ups was drawn from the Western Australian Pregnancy Cohort (Raine) Study. Trajectories of BMI from birth to adolescence using linear mixed model analysis investigated the influence of age at which breastfeeding was stopped and the age at which other milk was introduced (binomial 4-month cutoff point). A subsample of linear mixed model-predicted BMI was used to determine BMI and age at nadir for early infant feeding groups.
RESULTS: Chi-square analysis between early feeding and weight status (normal weight, overweight and obese) groups found a significant difference between thee age at which breastfeeding was stopped (P<0.001) and the age at which other milk was introduced (P=0.011), with a higher proportion of overweight and obese in the < or = 4-month group, even after controlling for maternal education. Using the linear mixed model, the BMI determined was higher over time for the group that was breastfed for < or = 4 months (P=0.015), with a significant interaction effect with the group in which other milk was introduced at < or = 4 months (P=0.011). Using predicted BMI from the linear mixed model, significant differences for nadirs of adiposity rebound between early feeding groups were found (P<0.005).
CONCLUSIONS: Early infant feeding was important in the timing of, and BMI at, adiposity rebound. The relationship between infant feeding and BMI remained up to the age of 14 years. Although confounding factors cannot be excluded, these findings support the importance of exclusive breastfeeding for longer than 4 months as a protective behaviour against the development of adolescent obesity.
P Chivers; B Hands; H Parker; M Bulsara; L J Beilin; G E Kendall; W H Oddy
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-03-30
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  34     ISSN:  1476-5497     ISO Abbreviation:  Int J Obes (Lond)     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-12     Completed Date:  2010-12-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  1169-76     Citation Subset:  IM    
School of Health Sciences, The University of Notre Dame Australia, Fremantle, Western Australia 6959, Australia.
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MeSH Terms
Adiposity / physiology*
Body Mass Index
Body Weight
Breast Feeding / epidemiology,  psychology
Child, Preschool
Feeding Behavior / physiology*,  psychology
Health Surveys
Infant, Newborn
Longitudinal Studies
Obesity / epidemiology,  physiopathology*,  psychology
Risk Factors
Western Australia / epidemiology

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