不同种族和民族的 8 至 19 岁青少年身体质量指数与肥胖的横截面关系。

IF 3.9 2区医学 Q1 PEDIATRICS

Journal of Pediatrics Pub Date : 2024-10-22 DOI:10.1016/j.jpeds.2024.114375

David S. Freedman PhD , Babette S. Zemel PhD , David R. Weber MD , William H. Dietz MD, PhD

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引用次数: 0

摘要

研究目的研究设计：这项横断面研究纳入了 2011 年至 2018 年期间的 6454 名全国健康与营养调查参与者。通过双能 X 射线吸收测定法（DXA）测量了脂肪和瘦体重。我们用脂肪质量指数（FMI，kg ÷ m2）和脂肪百分比来表示脂肪含量：结果：根据美国疾病控制和预防中心的第 95 百分位数，在每个种族和民族群体中，约 95% 的参与者的高 BMI 能正确归类为高 FMI。约 81%（黑人）至 90%（西班牙裔）的高 BMI 参与者的 FMI 也较高。此外，BMI 偏高儿童的 FMI 偏高几率是 BMI "正常 "儿童的 17 倍（西班牙裔）至 46 倍（黑人）。高体重指数对高脂肪率的筛查能力较弱，因为脂肪率水平受脂肪量（分子）和瘦肉量（分母）的影响：结论：尽管身体成分存在差异，但高体重指数不仅对 8 至 19 岁的白人，而且对亚洲人、黑人和西班牙裔人来说，都是一种很好的筛查工具。与脂肪百分比相比，FMI 可能是儿童和青少年中更好的脂肪含量指标。

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查看原文本刊更多论文

The Cross-Sectional Relation of Body Mass Index to Adiposity among 8- to 19-Year-Olds within Several Races and Ethnicities

Objective

To assess the screening ability of a high body mass index (BMI) for high adiposity among 8- to 19-year-olds.

Study design

This cross-sectional study included 6454 National Health and Nutrition Survey participants from 2011 through 2018. Fat and lean mass were measured with dual-energy X-ray absorptiometry. We expressed adiposity as fat mass index (FMI, kg ÷ m²) and %fat.

Results

Based on the Centers for Disease Control and Prevention 95th percentile, a high BMI correctly classified a high FMI for about 95% of participants in each racial and ethnic group. About 81% (Blacks) to 90% (Hispanics) of participants with a high BMI also had a high FMI. Further, children with a high BMI were 17 (Hispanics) to 46 (Blacks) times more likely to have a high FMI than those with a “normal” BMI. The screening ability of high BMI for high %fat was weaker because levels of %fat are influenced by both fat mass (numerator) and lean mass (denominator).

Conclusions

Despite differences in body composition, a high BMI is a very good screening tool for identifying high FMI not only among White 8- to 19-year-olds but also among Asians, Blacks, and Hispanics. Compared with %fat, FMI is likely a better adiposity metric among children and adolescents.

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来源期刊

Journal of Pediatrics 医学-小儿科

CiteScore

6.00

自引率

2.00%

发文量

696

审稿时长

31 days

期刊介绍： The Journal of Pediatrics is an international peer-reviewed journal that advances pediatric research and serves as a practical guide for pediatricians who manage health and diagnose and treat disorders in infants, children, and adolescents. The Journal publishes original work based on standards of excellence and expert review. The Journal seeks to publish high quality original articles that are immediately applicable to practice (basic science, translational research, evidence-based medicine), brief clinical and laboratory case reports, medical progress, expert commentary, grand rounds, insightful editorials, “classic” physical examinations, and novel insights into clinical and academic pediatric medicine related to every aspect of child health. Published monthly since 1932, The Journal of Pediatrics continues to promote the latest developments in pediatric medicine, child health, policy, and advocacy. Topics covered in The Journal of Pediatrics include, but are not limited to: General Pediatrics Pediatric Subspecialties Adolescent Medicine Allergy and Immunology Cardiology Critical Care Medicine Developmental-Behavioral Medicine Endocrinology Gastroenterology Hematology-Oncology Infectious Diseases Neonatal-Perinatal Medicine Nephrology Neurology Emergency Medicine Pulmonology Rheumatology Genetics Ethics Health Service Research Pediatric Hospitalist Medicine.