Relative fat mass as an estimator of body fat percentage in Chilean adults

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dc.catalogadorgjm
dc.contributor.authorAguirre Polanco, Carolina
dc.contributor.authorTumani Karmy, María Fernanda
dc.contributor.authorCarrasco, Fernando
dc.contributor.authorInostroza, Jorge
dc.contributor.authorObregón, Ana Maria
dc.contributor.authorReyes, Álvaro
dc.contributor.authorPettinelli, Paulina
dc.date.accessioned2024-10-23T19:44:23Z
dc.date.available2024-10-23T19:44:23Z
dc.date.issued2024
dc.description.abstractBackground/Objective: The Relative Fat Mass (RFM) is an alternative index to body mass index (BMI) for estimating whole body fat percentage (BF%). Our aims were to determine the accuracy of the RFM for 1) identifying individuals with elevated BF% and, 2) estimating the BF% compared to Dual-energy X-ray absorptiometry (DXA) in a Chilean adult population. Subjects/Methods: Body composition was assessed by DXA in 270 healthy participants (125 women/145 men). Anthropometric measurements were assessed to calculate RFM and BMI. Receiver operating characteristic (ROC) curves were obtained to assess the sensitivity and specificity of both, RFM and BMI. Bland–Altman analysis between BF% measured by DXA vs. predicted BF% derived from RFM was performed to assess validity. Pearson´s correlation coefficients to analyze the association between BMI, RFM and DXA were also calculated. Results: For RFM, the cut-off for elevated BF% was ≥22.7% for men and ≥32.4% for women and for BMI was ≥24.4 kg/m2 for men and ≥24.1 kg/m2 for women. The area under the ROC curve between RFM and BMI was not significantly different in men (0.970 vs. 0.959; p = 0.420) and women (0.946 vs. 0.942, p = 0.750). The Bland–Altman analysis showed that the estimation bias is more pronounced in men than in women. Conclusion: RFM is an accurate tool for identifying individuals with elevated BF%, although it was not as accurate as DXA for estimating the BF%. RFM may be an alternative method useful in primary care to select individuals for lifestyle counseling and in research to select patients for epidemiological studies.
dc.fuente.origenORCID
dc.identifier.doi10.1038/s41430-024-01464-2
dc.identifier.eissn1476-5640
dc.identifier.issn0954-3007
dc.identifier.urihttps://doi.org/10.1038/s41430-024-01464-2
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/88346
dc.identifier.wosidWOS:001257443500001
dc.information.autorucDepartamento de Ciencias de la Salud; Aguirre Polanco, Carolina; 0000-0002-5573-9000; 1012275
dc.information.autorucDepartamento de Ciencias de la Salud; Tumani Karmy, María Fernanda; S/I; 231813
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final787
dc.pagina.inicio782
dc.revistaEuropean Journal of Clinical Nutrition
dc.rightsacceso restringido
dc.subjectNutrition
dc.subjectObesity
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleRelative fat mass as an estimator of body fat percentage in Chilean adults
dc.typeartículo
dc.volumen78
sipa.codpersvinculados1012275
sipa.codpersvinculados231813
sipa.trazabilidadORCID;2024-10-21
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