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BMI and objectively measured body fat and body fat distribution in prepubertal children.

Dencker, Magnus LU ; Thorsson, Ola LU ; Lindén, Christian LU ; Wollmer, Per LU ; Andersen, Lars B and Karlsson, Magnus K (2007) In Clinical Physiology and Functional Imaging 27(1). p.12-16
Abstract
Background Body Mass Index (BMI) is often used as a surrogate estimate of body fat in epidemiological studies. This study explores the association between BMI, body fat and body fat distribution assessed by Dual-Energy X-Ray Absorptiometry (DXA) in younger children. Methods Cross-sectional study of 246 children (138 boys and 108 girls) aged 8-11 years. DXA was used to quantify abdominal fat mass (AFM), total body fat (TBF) and also total body fat as percentage of total body mass (BF%). Body fat distribution was calculated as AFM/TBF. Results We found close correlations between BMI vs. TBF, BF% and AFM (r = 0.94, r = 0.92 and r = 0.93) for boys and (r = 0.95, r = 0.92 and r = 0.95) for girls, respectively (P < 0.05 for all r-values).... (More)
Background Body Mass Index (BMI) is often used as a surrogate estimate of body fat in epidemiological studies. This study explores the association between BMI, body fat and body fat distribution assessed by Dual-Energy X-Ray Absorptiometry (DXA) in younger children. Methods Cross-sectional study of 246 children (138 boys and 108 girls) aged 8-11 years. DXA was used to quantify abdominal fat mass (AFM), total body fat (TBF) and also total body fat as percentage of total body mass (BF%). Body fat distribution was calculated as AFM/TBF. Results We found close correlations between BMI vs. TBF, BF% and AFM (r = 0.94, r = 0.92 and r = 0.93) for boys and (r = 0.95, r = 0.92 and r = 0.95) for girls, respectively (P < 0.05 for all r-values). However, significantly lower correlation (P < 0.001 for difference between the r-values) existed for body fat distribution (r = 0.64 for boys and 0.73 for girls). Conclusion Percentage body fat, TBF and AFM were all closely associated with BMI, suggesting that BMI serves as a good surrogate marker for obesity in population studies. However, a significantly lower correlation existed for BMI vs. body fat distribution, which may be a limitation when BMI is used to study cardiovascular risk factors in epidemiological studies. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Body Mass Index, body fat, children, Dual-Energy X-Ray Absorptiometry
in
Clinical Physiology and Functional Imaging
volume
27
issue
1
pages
12 - 16
publisher
Wiley Online Library
external identifiers
  • wos:000242862200003
  • scopus:33845517793
ISSN
1475-0961
DOI
10.1111/j.1475-097X.2007.00709.x
language
English
LU publication?
yes
id
42e4167b-81a8-46c9-b70b-969b2559955c (old id 165129)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17204032&dopt=Abstract
date added to LUP
2007-07-17 14:15:35
date last changed
2017-10-22 03:55:33
@article{42e4167b-81a8-46c9-b70b-969b2559955c,
  abstract     = {Background Body Mass Index (BMI) is often used as a surrogate estimate of body fat in epidemiological studies. This study explores the association between BMI, body fat and body fat distribution assessed by Dual-Energy X-Ray Absorptiometry (DXA) in younger children. Methods Cross-sectional study of 246 children (138 boys and 108 girls) aged 8-11 years. DXA was used to quantify abdominal fat mass (AFM), total body fat (TBF) and also total body fat as percentage of total body mass (BF%). Body fat distribution was calculated as AFM/TBF. Results We found close correlations between BMI vs. TBF, BF% and AFM (r = 0.94, r = 0.92 and r = 0.93) for boys and (r = 0.95, r = 0.92 and r = 0.95) for girls, respectively (P &lt; 0.05 for all r-values). However, significantly lower correlation (P &lt; 0.001 for difference between the r-values) existed for body fat distribution (r = 0.64 for boys and 0.73 for girls). Conclusion Percentage body fat, TBF and AFM were all closely associated with BMI, suggesting that BMI serves as a good surrogate marker for obesity in population studies. However, a significantly lower correlation existed for BMI vs. body fat distribution, which may be a limitation when BMI is used to study cardiovascular risk factors in epidemiological studies.},
  author       = {Dencker, Magnus and Thorsson, Ola and Lindén, Christian and Wollmer, Per and Andersen, Lars B and Karlsson, Magnus K},
  issn         = {1475-0961},
  keyword      = {Body Mass Index,body fat,children,Dual-Energy X-Ray Absorptiometry},
  language     = {eng},
  number       = {1},
  pages        = {12--16},
  publisher    = {Wiley Online Library},
  series       = {Clinical Physiology and Functional Imaging},
  title        = {BMI and objectively measured body fat and body fat distribution in prepubertal children.},
  url          = {http://dx.doi.org/10.1111/j.1475-097X.2007.00709.x},
  volume       = {27},
  year         = {2007},
}