Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/11000/30871

Degree of Accuracy of the BMI Z-Score to Determine Excess Fat Mass Using DXA in Children and Adolescents

Título :
Degree of Accuracy of the BMI Z-Score to Determine Excess Fat Mass Using DXA in Children and Adolescents
Autor :
Monasor Ortola, David  
Quesada-Rico, Jose Antonio
Nso-Roca, Ana Pilar  
Rizo-Baeza, Mercedes  
CORTÉS CASTELL, ERNESTO  
Martínez-Segura, Asier
Sánchez-Ferrer, Francisco
Editor :
MDPI
Departamento:
Departamentos de la UMH::Farmacología, Pediatría y Química Orgánica
Departamentos de la UMH::Medicina Clínica
Fecha de publicación:
2021-11-18
URI :
https://hdl.handle.net/11000/30871
Resumen :
Obesity is caused by fat accumulation. BMI Z-score is used to classify the different degrees of weight status in children and adolescents. However, this parameter does not always express the true percentage of body fat. Our objective was to determine the degree of agreement between the fat mass percentage measured by DXA and the stratification of weight according to BMI Z-score in the pediatric age group. We designed a descriptive cross-sectional study. The patients were classified as underweight/normal weight with Z-scores between 􀀀2 and +0.99, overweight from 1 to 1.99, obese from 2 to 2.99, and very obese 3. We included 551 patients (47% girls), with a mean age of 11.5 2.8 years (3.7–18 years). Higher BMI Z-scores were associated with a higher percentage of total fat (p < 0.001). However, there were important overlaps between both parameters, such that the BMI Z-score classified patients with the same percentage of total fat mass as having a different nutritional status classification. In conclusion, the stratification of weight status according to BMI Z-score revealed that 46.7% of patients had a fat percentage that did not correspond to their classification. For a more accurate weight assessment in clinical practice, we recommend combining anthropometric indices with diagnostic tools that better correlate with DXA, such as electrical bioimpedance.
Palabras clave/Materias:
BMI Z-score
childhood obesity
body composition
fat mass
growth charts
Tipo documento :
application/pdf
Derechos de acceso:
info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
DOI :
https:// doi.org/10.3390/ijerph182212114
Aparece en las colecciones:
Artículos Farmacología, Pediatría y Química Orgánica



Creative Commons La licencia se describe como: Atribución-NonComercial-NoDerivada 4.0 Internacional.