Triponderal mass index rather than body mass index: An indicator of high adiposity in Italian children and adolescents
| Autor: | Paola Gualtieri, Renata Costa de Miranda, Laura Di Renzo, Lorenzo Romano, Elena Carrano, Chiara Salimei, Antonino De Lorenzo, Tiziana Rampello |
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| Rok vydání: | 2019 |
| Předmět: |
Male
0301 basic medicine Pediatric Obesity Percentile Adolescent Cutoff Endocrinology Diabetes and Metabolism 030209 endocrinology & metabolism Settore MED/49 Childhood obesity Body Mass Index 03 medical and health sciences Absorptiometry Photon 0302 clinical medicine Reference Values Prevalence Humans Medicine Mass index Obesity Child Adiposity 030109 nutrition & dietetics Nutrition and Dietetics Anthropometry Fat mass Receiver operating characteristic business.industry Body Weight Area under the curve Epidemiologic studies Childhood Screening medicine.disease Body Height Confidence interval Cross-Sectional Studies Adipose Tissue Italy ROC Curve Area Under Curve Body Composition Regression Analysis Female business Body mass index Demography |
| Zdroj: | Nutrition. 60:41-47 |
| ISSN: | 0899-9007 |
| DOI: | 10.1016/j.nut.2018.09.007 |
| Popis: | Objective The aims of this study were to compare body mass index (BMI) and triponderal mass index (TMI) as predictors of fat mass percentage (FM%) and to develop TMI cutoffs for screening high adiposity. Therefore, TMI- and BMI-based references against FM% criterion for indicating adiposity in Italian children and adolescents were compared. Methods This was a cross-sectional study conducted at the University of Rome Tor Vergata, Human Nutrition Unit, from 2008 to 2015. The sample included 485 children and adolescents from 8 to 17 y of age from central-southern Italy. Body weight (kg) and height (m) were assessed to calculate BMI and TMI. FM% was assessed by dual-energy x-ray absorptiometry. The prevalence of high adiposity was based on the 75th percentile of FM%, according to Ogden et al. curves. Statistical tests such as Mann–Whitney, Kruskal–Wallis, polynomial regression, receiver operating characteristics curve, and Cohen's κ, were performed using SPSS version 24 and MedCalc version 18. Results Prevalence of high adiposity according to FM% was 50.2% (95% confidence interval [CI], 43.2–57.2) in boys and 43.2% (95% CI, 37.3–49.2) in girls. TMI rather than BMI could better predict FM% for both sexes (boys R2 = 0.67 and girls R2 = 0.79 versus boys R2 = 0.44 and girls R2 = 0.74, respectively). TMI was found to present a significantly higher area under the curve than BMI for indicating high adiposity in children and adolescents. TMI sex- and age-specific cutoffs were responsible by better classification of adiposity, followed by the International Obesity Task Force, World Health Organization, and Cacciari reference curves. Conclusion TMI is a useful screening tool in pediatric clinical practice and epidemiologic studies concerning childhood obesity. |
| Databáze: | OpenAIRE |
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