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National Health and Nutrition Examination Survey (NHANES), 2001-2006

William D. Johnson, PhD; Jolanda J. M. Kroon, BSc; Frank L. Greenway, MD; Claude Bouchard, PhD; Donna Ryan, PhD; Peter T. Katzmarzyk, PhD

Arch Pediatr Adolesc Med. 2009;163(4):371-377.

Objective  To investigate the prevalence of distinct combinations of components of the metabolic syndrome among adolescents.

Design  A complex, multistage, stratified geographic area design for collecting representative data from the noninstitutionalized US population.

Setting  The NHANES, an ongoing surveillance of the nation's health conducted by the Centers for Disease Control and Prevention.

Participants  Two thousand four hundred fifty-six Hispanic, white, and black adolescents aged 12 to 19 years observed in the 2001-2002, 2003-2004, and 2005-2006 NHANES data releases.

Main Outcome Measures  Metabolic syndrome was defined as having 3 or more disorders in the following measurements: waist circumference, blood pressure, fasting triglycerides, high-density lipoprotein serum cholesterol, and glucose.

Results  About half of the participants had at least 1 disordered measurement, with an overall metabolic syndrome prevalence of 8.6% (95% confidence interval, 6.5%-10.6%). Prevalence was higher in males (10.8%) than females (6.1%), and in Hispanic (11.2%) and white (8.9%) individuals than in black individuals (4.0%). In black females, there was a high prevalence of a large waist circumference (23.3%), but no component of metabolic syndrome dominated its diagnosis in black adolescents of either sex. A large waist circumference and high fasting triglyceride and low high-density lipoprotein serum cholesterol concentrations were salient factors in Hispanic and white adolescents of both sexes; high glucose concentrations were prominent among Hispanic and white males.

Conclusion  The low prevalence of metabolic syndrome in black adolescents, in parallel with uniformly low prevalence of all 5 risk factors among those with metabolic syndrome, portend ethnic disparities in the time table for early onset of cardiometabolic disorders.

Author Affiliations: Pennington Biomedical Research Center, Baton Rouge, Louisiana.

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