Identifier to cite or link to this item: http://hdl.handle.net/20.500.13003/10904
A Comparison between Multiple Regression Models and CUN-BAE Equation to Predict Body Fat in Adults
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CitationFuster-Parra P, Bennasar-Veny M, Tauler Riera P, Yañez AM, Lopez Gonzalez AA, Aguilo A. A Comparison between Multiple Regression Models and CUN-BAE Equation to Predict Body Fat in Adults. PLoS One. 2015 Mar 30;10(3):e0122291.
Background Because the accurate measure of body fat (BF) is difficult, several prediction equations have been proposed. The aim of this study was to compare different multiple regression models to predict BF, including the recently reported CUN-BAE equation. Methods Multi regression models using body mass index (BMI) and body adiposity index (BAI) as predictors of BF will be compared. These models will be also compared with the CUN-BAE equation. For all the analysis a sample including all the participants and another one including only the overweight and obese subjects will be considered. The BF reference measure was made using Bioelectrical Impedance Analysis. Results The simplest models including only BMI or BAI as independent variables showed that BAI is a better predictor of BF. However, adding the variable sex to both models made BMI a better predictor than the BAI. For both the whole group of participants and the group of overweight and obese participants, using simple models (BMI, age and sex as variables) allowed obtaining similar correlations with BF as when the more complex CUN-BAE was used (rho = 0:87 vs rho= 0:86 for the whole sample and rho= 0:88 vs rho= 0:89 for overweight and obese subjects, being the second value the one for CUN-BAE). Conclusions There are simpler models than CUN-BAE equation that fits BF as well as CUN-BAE does. Therefore, it could be considered that CUN-BAE overfits. Using a simple linear regression model, the BAI, as the only variable, predicts BF better than BMI. However, when the sex variable is introduced, BMI becomes the indicator of choice to predict BF.
European Continental Ancestry Group
Body Mass Index
DeCSÍndice de Masa Corporal
Grupo de Ascendencia Continental Europea
Persona de Mediana Edad
Análisis de Regresión
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