Diagnostic accuracy of body mass index in defining childhood obesity: Analysis of cross-sectional data from ghanaian children

dc.contributor.authorAdom, Theodosia
dc.contributor.authorKengne, Andre-Pascal
dc.contributor.authorVilliers, Anniza De
dc.date.accessioned2021-01-08T09:46:34Z
dc.date.available2021-01-08T09:46:34Z
dc.date.issued2020
dc.description.abstractScreening methods for childhood obesity are based largely on the published body mass index (BMI) criteria. Nonetheless, their accuracy in African children is largely unknown. The diagnostic accuracies of the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), and the International Obesity Taskforce (IOTF) BMI-based criteria in defining obesity using deuterium dilution as a criterion method in a sample of Ghanaian children are presented. Methods: Data on anthropometric indices and percent body fat were collected from 183 children aged 8–11 years. The sensitivity, specificity, and predictive values were calculated. The overall performance of the BMI criteria was evaluated using the receiver operating characteristics area under the curve (AUC). Results: Overall sensitivity of WHO, CDC, and IOTF were 59.4% (40.6–76.3), 53.1% (34.7–70.9), and 46.9% (29.1–65.3) respectively. The overall specificity was high, ranging from 98.7% by WHO to 100.0% by IOTF. The AUC were 0.936 (0.865–1.000), 0.924 (0.852–0.995), and 0.945 (0.879–1.000) by the WHO, CDC, and IOTF criteria respectively for the overall sample. Prevalence of obesity by the WHO, CDC, IOTF, and deuterium oxide-derived percent body fat were 11.5%, 10.4%, 8.2%, and 17.5% respectively, with significant positive correlations between the BMI z-scores and percent body fat. Conclusions: The BMI-based criteria were largely specific but with moderate sensitivity in detecting excess body fat in Ghanaian children.en_US
dc.identifier.citationAdom, T. et al. (2020). Diagnostic accuracy of body mass index in defining childhood obesity: Analysis of cross-sectional data from ghanaian children. International Journal of Environmental Research and Public Health, 17(1),36en_US
dc.identifier.issn1660-4601
dc.identifier.uri10.3390/ijerph17010036
dc.identifier.urihttp://hdl.handle.net/10566/5621
dc.language.isoenen_US
dc.publisherMPDIen_US
dc.subjectObesityen_US
dc.subjectSchool childrenen_US
dc.subjectBody mass indexen_US
dc.subjectPercent body faten_US
dc.subjectDeuterium oxideen_US
dc.titleDiagnostic accuracy of body mass index in defining childhood obesity: Analysis of cross-sectional data from ghanaian childrenen_US
dc.typeArticleen_US

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