alexa Prevalence of obesity and trends in body mass index among US children and adolescents, 1999-2010.
Psychiatry

Psychiatry

International Journal of School and Cognitive Psychology

Author(s): Ogden CL, Carroll MD, Kit BK, Flegal KM

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Abstract CONTEXT: The prevalence of childhood obesity increased in the 1980s and 1990s but there were no significant changes in prevalence between 1999-2000 and 2007-2008 in the United States. OBJECTIVES: To present the most recent estimates of obesity prevalence in US children and adolescents for 2009-2010 and to investigate trends in obesity prevalence and body mass index (BMI) among children and adolescents between 1999-2000 and 2009-2010. DESIGN, SETTING, AND PARTICIPANTS: Cross-sectional analyses of a representative sample (N = 4111) of the US child and adolescent population (birth through 19 years of age) with measured heights and weights from the National Health and Nutrition Examination Survey 2009-2010. MAIN OUTCOME MEASURES: Prevalence of high weight-for-recumbent length (≥95th percentile on the growth charts) among infants and toddlers from birth to 2 years of age and obesity (BMI ≥95th percentile of the BMI-for-age growth charts) among children and adolescents aged 2 through 19 years. Analyses of trends in obesity by sex and race/ethnicity, and analyses of trends in BMI within sex-specific age groups for 6 survey periods (1999-2000, 2001-2002, 2003-2004, 2005-2006, 2007-2008, and 2009-2010) over 12 years. RESULTS: In 2009-2010, 9.7\% (95\% CI, 7.6\%-12.3\%) of infants and toddlers had a high weight-for-recumbent length and 16.9\% (95\% CI, 15.4\%-18.4\%) of children and adolescents from 2 through 19 years of age were obese. There was no difference in obesity prevalence among males (P = .62) or females (P = .65) between 2007-2008 and 2009-2010. However, trend analyses over a 12-year period indicated a significant increase in obesity prevalence between 1999-2000 and 2009-2010 in males aged 2 through 19 years (odds ratio, 1.05; 95\% CI, 1.01-1.10) but not in females (odds ratio, 1.02; 95\% CI, 0.98-1.07) per 2-year survey cycle. There was a significant increase in BMI among adolescent males aged 12 through 19 years (P = .04) but not among any other age group or among females. CONCLUSION: In 2009-2010, the prevalence of obesity in children and adolescents was 16.9\%; this was not changed compared with 2007-2008. This article was published in JAMA and referenced in International Journal of School and Cognitive Psychology

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