Prediction equations for body composition of children and adolescents aged 8e19 years in Uganda using deuterium dilution as the reference technique

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dc.contributor.authorNdagire, Catherine T.
dc.contributor.authorMuyonga, John H.
dc.contributor.authorOdur, Benard
dc.contributor.authorNakimbugwe, Dorothy
dc.date.accessioned2022-05-27T13:39:48Z
dc.date.available2022-05-27T13:39:48Z
dc.date.issued2018
dc.description.abstractBackground and aims: Body composition is important as a marker of both current and future health status. Bioelectrical impedance analysis (BIA) is a simple and accurate method for estimating body composition in field, clinical and research settings, if standard protocol procedures are followed. However, BIA requires population-specific equations since applicability of existing equations to diverse populations has been questioned. This study aimed to derive predictive equations for Total Body Water (TBW), Fat Free Mass (FFM) and Fat Mass (FM) determinations with BIA and anthropometric measurements in a population of children and adolescents aged 8e19 years in Uganda. Methods: A cross-sectional study was conducted among 203 children and adolescents aged 8e19 years attending schools in Kampala district (also referred to as Kampala city since the city is conterminous with the district), Uganda through a two-stage cluster sample design. Deuterium dilution method (DDM) was used as the reference measure while BIA and anthropometric measures were used to create the new body composition prediction equations through multivariate regression. Results: The new prediction equations explained 88%, 87% and 71% of the variance in TBW, FFM % and of FM respectively with no statistical shrinkage upon cross-validation. The linear regression models proposed in this study were well adjusted with respect to TBW, FFM and FM. Log of TBW obtained by DDM ¼ 0.0129 Impedance index þ 0.0055 Age þ 0.0049Waist Circumference þ 0.1219Ht2 þ 2.0388. Log of FFM obtained by DDM ¼ 0.0197 FFM obtained by BIA e 0.0181 sex code e 0.00055 Impedance þ 3.1761. Log of FM obtained by DDM ¼ 0.0634 FM obtained by BIA e 0.1881 sex code þ 0.0252 Weight þ 0.5273.en_US
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/3570
dc.language.isoenen_US
dc.publisherClinical Nutrition ESPENen_US
dc.subjectBody composition Bioelectricen_US
dc.subjectimpedance analysisen_US
dc.subjectDeuterium dilution methoden_US
dc.subjectPredictive equations Children Adolescentsen_US
dc.titlePrediction equations for body composition of children and adolescents aged 8e19 years in Uganda using deuterium dilution as the reference techniqueen_US
dc.typeArticleen_US
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