Validation of bioelectrical impedance analysis for total body water assessment against the deuterium dilution technique in Asian children

Liu, A., Byrne, N. M., Ma, G., Nasreddine, L., Trinidad, T. P., Kijboonchoo, K., Ismail, M. N., Kagawa, M., Poh, B. K. and Hills, A. P. (2011) Validation of bioelectrical impedance analysis for total body water assessment against the deuterium dilution technique in Asian children. European Journal of Clinical Nutrition, 65 1321-1327. doi:10.1038/ejcn.2011.122


Author Liu, A.
Byrne, N. M.
Ma, G.
Nasreddine, L.
Trinidad, T. P.
Kijboonchoo, K.
Ismail, M. N.
Kagawa, M.
Poh, B. K.
Hills, A. P.
Title Validation of bioelectrical impedance analysis for total body water assessment against the deuterium dilution technique in Asian children
Journal name European Journal of Clinical Nutrition   Check publisher's open access policy
ISSN 0954-3007
1476-5640
Publication date 2011-07-06
Year available 2011
Sub-type Article (original research)
DOI 10.1038/ejcn.2011.122
Open Access Status Not yet assessed
Volume 65
Start page 1321
End page 1327
Total pages 7
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Language eng
Formatted abstract
Background/Objectives: To develop and cross-validate bioelectrical impedance analysis (BIA) prediction equations of total body water (TBW) and fat-free mass (FFM) for Asian pre-pubertal children from China, Lebanon, Malaysia, Philippines and Thailand.

Subjects/Methods: Height, weight, age, gender, resistance and reactance measured by BIA were collected from 948 Asian children (492 boys and 456 girls) aged 8-10 years from the five countries. The deuterium dilution technique was used as the criterion method for the estimation of TBW and FFM. The BIA equations were developed using stepwise multiple regression analysis and cross-validated using the Bland-Altman approach.

Results: The BIA prediction equation for the estimation of TBW was as follows: TBW=0.231 × height2/resistance+ 0.066 × height+0.188 × weight+0.128 × age+0.500 × sex-0.316 × Thais-4.574 (R2=88.0%, root mean square error (RMSE)=1.3 kg), and for the estimation of FFM was as follows: FFM=0.299 × height2/ resistance+0.086 × height+0.245 × weight+0.260 × age+0.901 × sex-0.415 × ethnicity (Thai ethnicity = 1, others = 0)-6.952 (R2 88.3%, RMSE=1.7 kg). No significant difference between measured and predicted values for the whole cross-validation sample was found. However, the prediction equation for estimation of TBW/FFM tended to overestimate TBW/FFM at lower levels whereas underestimate at higher levels of TBW/FFM. Accuracy of the general equation for TBW and FFM was also valid at each body mass index category.

Conclusions: Ethnicity influences the relationship between BIA and body composition in Asian pre-pubertal children. The newly developed BIA prediction equations are valid for use in Asian pre-pubertal children.
Keyword Asia
Bioelectrical impedance analysis
Body composition
Children
Fat-free mass
Total body water
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Human Movement and Nutrition Sciences Publications
 
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