Validation of anthropometric and bioelectrical impedance analysis (BIA) equations to predict total body water in a group of Cameroonian preschool children using deuterium dilution method
Nutrire Rev. Soc. Bras. Aliment. Nutr
; 42: 1-10, Dec. 2017. tab, ilus
Article
in English
| LILACS
| ID: biblio-880962
Responsible library:
BR1600.9
ABSTRACT
BACKGROUND:
Little information is available on the validity of anthropometry or impedance-based equations for prediction of total body water (TBW) in African children. This study was designed to validate and develop equations to predict total body water in Cameroonian children.METHODS:
TBW was measured by deuterium dilution in 102 children between 24 and 60 months of age and compared with the ones predicted by 5 anthropometric and 7 BIA equations. Multiple linear regression analysis was used to develop prediction equations for TBW from anthropometric parameters.RESULTS:
Unacceptable discrepancies in the estimates of TBW at individual level were noted with all the equations tested. The following new anthropometry and BIA equations for the estimation of TBW were respectively developed TBW = 6.488 + 0.434 × sex−0.039 × age + 0.670 × weight−0.081 × MUAC (cm)−0.372 × BMI (adjustedR2= 0.71,RMSE = 3.6), and TBW =−6.206 + 0.0037 × height2/Z−0.041 × age + 0.265 × weight + 0.1214 × height (adjustedR2=0.68, RMSE = 1.4). The cross-validation procedures revealed that the predicted values of TBW compared with measured values are accurate at a group level.CONCLUSION:
The current published anthropometric and BIA equations are invalid for the estimation of TBW in Cameroonian preschool children. The newly developed anthropometry or BIA prediction equations are valid for use in Cameroonian children aged 2460 months
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Body Water
/
Anthropometry
/
Electric Impedance
/
Deuterium
Type of study:
Prognostic study
/
Risk factors
Limits:
Child, preschool
/
Female
/
Humans
/
Male
Language:
English
Journal:
Nutrire Rev. Soc. Bras. Aliment. Nutr
Journal subject:
Nutritional Sciences
Year:
2017
Document type:
Article