ArticleDiabetes, obesity & metabolism2025
Validation of anthropometric and bioelectrical impedance equations for the prediction of fat mass amongst South African children.
Article in Diabetes, obesity & metabolism, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Validation of anthropometric and bioelectrical impedance equations for the prediction of fat mass amongst South African children.Diabetes, obesity & metabolism · 2025Article
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8 authors.
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Abstract
BACKGROUND/
aimsWhile several prediction equations which combine anthropometric, demographic, and/or bioelectrical impedance (BIA) variables to estimate childhood fat mass (FM) are available, comprehensive comparisons of their performance are lacking. We validated FM estimates for children from a range of published equations against reference-standard deuterium dilution observed FM.
methodsThis cross-sectional study was based on 323 children (42% male) from South Africa of Black African ethnic origins aged 5 to 8 years with information on age, sex, ethnicity, height, weight, deuterium dilution observed FM, triceps and subscapular skinfold thickness, and BIA observed FM, resistance, and impedance. We extracted all equations from three systematic reviews of childhood FM prediction equations that used the above available predictors and were developed on more than 100 males and females. FM estimates from each equation were calculated and the performance of each, as well as FM reported from the BIA manufacturer software, was compared with deuterium dilution observed FM using statistics of R
resultsNineteen equations (1 based on basic anthropometry, 12 on skinfold thickness, 6 on BIA) were validated. R
conclusionsThe performance of published equations varied considerably upon external validation in this South African childhood population. Notably, the Hudda et al. (2019) equation, which relies solely on readily available information of weight, height, sex, age and ethnicity, produced one of the highest R
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