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Bioelectrical impedance for measuring percentage body fat in young persons with Down syndrome: validation with dual energy absorptiometry.
MedLine Citation:
PMID:  22897200     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aim  Children with Down syndrome have an increased prevalence of obesity, although there is little work describing body composition in this population. The aims of this study were to accurately measure body fat in children with Down syndrome and to identify which existing algorithm best predicts percentage body fat in this population. Methods  Seventy children with Down syndrome had anthropometric, bioelectrical impedance analysis (BIA) and Dual energy x-ray absorptiometry (DXA) data collected to calculate percentage body fat (PBF). Pearson correlations were carried out to assess the relationships of various methods for measuring body fat, and Bland-Altman plots to assess systematic error. Results  Mean PBF was 30.5% for girls and 22.5% for boys. A total of 38% of girls and 23% of boys were obese according to international criteria. PBF as determined by DXA correlated well with PBF by BIA in both girls and boys (r=0.91 and 0.89 respectively, p<0.001). Conclusion  There are high rates of obesity in children with Down syndrome. BIA can be used to accurately determine adiposity in this population. We recommend the use of the Schaeffer algorithm for calculation of PBF in children with Down syndrome. © 2012 The Author(s)/Acta Paediatrica © 2012 Foundation Acta Paediatrica.
Authors:
Sarah J Loveday; John M D Thompson; Edwin A Mitchell
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-17
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  -     ISSN:  1651-2227     ISO Abbreviation:  Acta Paediatr.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Author(s)/Acta Paediatrica © 2012 Foundation Acta Paediatrica.
Affiliation:
Department of Paediatrics, The University of Auckland, Auckland, New Zealand.
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