Journal
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
Volume 32, Issue 2, Pages 346-354Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.numecd.2021.10.021
Keywords
Metabolic syndrome; Adolescents; Healthy eating index; Abdominal obesity; Sagittal abdominal; diameter
Funding
- Center for Clinical and Translational Science and Training (CCTST) - National Institutes of Health (NIH) Clinical and Translational Science Award (CTSA) program [2UL1TR001425-05A1]
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This study found that American adolescents have poor diet quality and low levels of physical activity, and about half of them suffer from metabolic syndrome. Abdominal obesity is significantly associated with the severity of metabolic syndrome, while diet and exercise habits are related to the development of metabolic syndrome.
Background and aims: Metabolic syndrome (MetS) affects w10% of adolescents and is associated with cardiometabolic disease risk. The most prevalent MetS component is abdominal obesity. Healthy diet and physical activity (PA) are inversely associated with abdominal obesity and may reduce MetS risk in youth. Our aim was to examine associations of diet, activity, and abdominal obesity with MetS z-score (MetS-z). Methods and results: An analysis of National Health and Nutrition Examination Survey (NHANES) 2011-2016 data in adolescents was performed. Healthy Eating Index (HEI)- 2015 scores were calculated for diet quality, PA habits were used to determine alignment with national guidelines, and abdominal obesity was assessed by sagittal abdominal diameter (SAD). MetS-z represented severity or potential risk for MetS. Multivariable regression evaluated the relationships of HEI, SAD and PA with MetS-z. Among 1214 black and white adolescents, SAD was significantly associated with MetS-z [b (95% CI) Z 0.17 (0.16, 0.19); P <0.0001] while HEI-2015 components showed associations with MetS-z overall (HEI total, dairy, and sodium scores), and by sex (total, refined grains, dairy for males; added sugar, protein, whole grains for females). Mean HEI-2015 score was 47.4/100 (51.6 using the population-ratio method), and the proportion of adolescents meeting national PA guidelines was 37.6%, yet PA was not a significant predictor of MetS-z. Conclusions: US adolescents have poor diet quality and fewer than half meet PA guidelines. Strategies for preventing MetS and related conditions in adolescence should focus on weight management - specifically, abdominal fat reduction - with individualized diet counseling. (c) 2021 The Italian Diabetes Society, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition and the Department of Clinical Medicine and Surgery, Federico II University. Published by Elsevier B.V. All rights reserved.
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