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Obesity (Silver Spring). 2010 Sep;18(9):1801-4. doi: 10.1038/oby.2009.451. Epub 2009 Dec 24.

Longitudinal trends in obesity in the United States from adolescence to the third decade of life.

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1
Department of Nutrition, Carolina Population Center, University of North Carolina-Chapel Hill, Gillings School of Global Public Health University of North Carolina, Chapel Hill, North Carolina 27516-2524, USA. pglarsen@unc.edu

Abstract

No longitudinal analyses using national data have evaluated the increase in obesity from adolescence into early adulthood. We examined obesity incidence, persistence, and reversal in a nationally representative cohort of US teens followed into their early 30s, using measured height and weight data, in individuals enrolled in wave II (1996; 12-21 years), wave III (2001; 17-26 years), and wave IV (2008 early release data; 24-32 years) of the National Longitudinal Study of Adolescent Health (N = 8,675). Obesity was defined as a BMI >or=95th percentile of the 2000 Centers for Disease Control/National Center for Health Statistics growth charts or >or=30 kg/m(2) for individuals <20 years and >or=30 kg/m(2) in individuals >or=20 years. In 1996, 13.3% of adolescents were obese. By 2008, obesity prevalence increased to 36.1%, and was highest among non-Hispanic black females (54.8%). Ninety percent of the obese adolescents remained obese in 2008. While annual obesity incidence did not decline in the total sample across the two study intervals (2.3% per year 1996-2001 vs. 2.2% per year 2001-2008), rates among white females declined (2.7 to 1.9% per year) and were highest among non-Hispanic black and Hispanic females (3.8 and 2.7% per year, 1996-2001 vs. 3.0 and 2.6% per year, 2002-2008, respectively). Obesity prevalence doubled from adolescence to the early 20s, and doubled again from the early to late 20s or early 30s, with strong tracking from adolescence into adulthood. This trend is likely to continue owing to high rates of pediatric obesity. Effective preventive and treatment efforts are critically needed.

PMID:
20035278
PMCID:
PMC2929301
DOI:
10.1038/oby.2009.451
[Indexed for MEDLINE]
Free PMC Article
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