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Associations of infant feeding and timing of linear growth and relative weight gain during early life with childhood body composition.
MedLine Citation:
PMID:  25435256     Owner:  NLM     Status:  Publisher    
BackgroundGrowth and feeding during infancy have been associated with later life BMI. However, the associations of infant feeding, linear growth and weight gain relative to linear growth with separate components of body composition remain unclear.MethodsOf 5551 children with collected growth- and infant feeding data in a prospective cohort study (Amsterdam Born Children and their Development), body composition measured using bioelectrical impedance analysis at age 5-6 years was available for 2227 children. We assessed how feeding (duration of full breastfeeding and timing of introduction of complementary feeding), and conditional variables representing linear growth and relative weight gain were associated with childhood Fat Free Mass (FFM) and Fat Mass (FM).ResultsBirth weight was positively associated with both fat-free mass (FFM) and fat mass (FM) in childhood, and more strongly with FFM than FM. Faster linear growth and faster relative weight gain at all ages in infancy were positively associated with childhood FFM and FM. The associations with FM were stronger for relative weight gain than for linear growth (FM z score: β coefficient 0.23 (95% CI 0.19 to 0.26), P<0.001 and 0.14 (0.11 to 0.17), P<0.001 per SD change in relative weight gain and linear growth between 1-3 months respectively). Compared to full breastfeeding <1 month, full breastfeeding >6 months was associated with lower FM (FM z score: -0.17 (-0.28 to -0.05), P=0.005) and lower FFM (FFM z score: -0.13 (-0.23 to -0.03), P=0.015), as was introduction of complementary feeding >6 months (FM z score: -0.22 (-0.38 to -0.07), P=0.004), compared to <4 months.ConclusionsFaster infant weight gain is associated with a healthier childhood body composition when it is caused by faster linear growth. Full breastfeeding >6 months and introduction of complementary feeding >6 months are associated with lower childhood FM.International Journal of Obesity accepted article preview online, 01 December 2014. doi:10.1038/ijo.2014.200.
M de Beer; T G M Vrijkotte; C H D Fall; M van Eijsden; C Osmond; R J B J Gemke
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-01
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  -     ISSN:  1476-5497     ISO Abbreviation:  Int J Obes (Lond)     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-1     Completed Date:  -     Revised Date:  2014-12-2    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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