Tri-Ponderal Mass Index: A Screening Tool for Risk of Central Fat Accumulation in Brazilian Preschool Children

• Main Authors: Viviane Gabriela Nascimento, Ciro João Bertoli, Paulo Rogerio Gallo, Luiz Carlos de Abreu, Claudio Leone
• Format: Article
• Language: English
• Published: MDPI AG 2019-09-01
• Series: Medicina
• Subjects: body mass index; tri-ponderal mass index; obesity; child; preschool; waist circumference; circumference–height ratio; central fat
• Online Access: https://www.mdpi.com/1010-660X/55/9/577

<i>Background and Objectives</i>: To verify the use of the tri-ponderalmass index (TMI) as a screening tool for risk of central fat accumulation in preschool children. <i>Materials and Methods</i>: An observational, analytical study was carried out on samples from children 2 to 5 years of age. The body mass index (BMI) and the tri-ponderalmass index (TMI: Weight/height3) were calculated. The waist circumference-to-height ratio (WHtR) was used to classify central fat accumulation risk. Preschoolers whose WHtRwas in the upper tertile of the sample were classified as at risk for central fat accumulation. A comparison of the two indicators (BMI and TMI) was made from the area under the receiver operator characteristics (ROC) curve (AUC) in the discrimination of the WHtR. <i>Results</i>: The sample used for analysis was 919 preschoolers. The mean age of the children was 3.9 years (SD = 0.7). The difference in AUC was 5% higher for TMI (<i>p</i> &lt; 0.0001). In the individual analysis of the ROC curve of the TMI, favoring a higher sensitivity, the cutoff point of 14.0 kg/m³ showed a sensitivity of 99.3% (95% CI: 97.6&#8722;99.9). <i>Conclusion</i>: Considering WHtR as a marker of possible future metabolic risk among preschool children, TMI proved to be a useful tool, superior to BMI, in screening for risk of central fat accumulation in preschool children.