alexa Prevalence of childhood and adult obesity in the United States, 2011-2012.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

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

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Abstract IMPORTANCE: More than one-third of adults and 17\% of youth in the United States are obese, although the prevalence remained stable between 2003-2004 and 2009-2010. OBJECTIVE: To provide the most recent national estimates of childhood obesity, analyze trends in childhood obesity between 2003 and 2012, and provide detailed obesity trend analyses among adults. DESIGN, SETTING, AND PARTICIPANTS: Weight and height or recumbent length were measured in 9120 participants in the 2011-2012 nationally representative National Health and Nutrition Examination Survey. MAIN OUTCOMES AND MEASURES: In infants and toddlers from birth to 2 years, high weight for recumbent length was defined as weight for length at or above the 95th percentile of the sex-specific Centers for Disease Control and Prevention (CDC) growth charts. In children and adolescents aged 2 to 19 years, obesity was defined as a body mass index (BMI) at or above the 95th percentile of the sex-specific CDC BMI-for-age growth charts. In adults, obesity was defined as a BMI greater than or equal to 30. Analyses of trends in high weight for recumbent length or obesity prevalence were conducted overall and separately by age across 5 periods (2003-2004, 2005-2006, 2007-2008, 2009-2010, and 2011-2012). RESULTS: In 2011-2012, 8.1\% (95\% CI, 5.8\%-11.1\%) of infants and toddlers had high weight for recumbent length, and 16.9\% (95\% CI, 14.9\%-19.2\%) of 2- to 19-year-olds and 34.9\% (95\% CI, 32.0\%-37.9\%) of adults (age-adjusted) aged 20 years or older were obese. Overall, there was no significant change from 2003-2004 through 2011-2012 in high weight for recumbent length among infants and toddlers, obesity in 2- to 19-year-olds, or obesity in adults. Tests for an interaction between survey period and age found an interaction in children (P = .03) and women (P = .02). There was a significant decrease in obesity among 2- to 5-year-old children (from 13.9\% to 8.4\%; P = .03) and a significant increase in obesity among women aged 60 years and older (from 31.5\% to 38.1\%; P = .006). CONCLUSIONS AND RELEVANCE: Overall, there have been no significant changes in obesity prevalence in youth or adults between 2003-2004 and 2011-2012. Obesity prevalence remains high and thus it is important to continue surveillance.
This article was published in JAMA and referenced in Journal of AIDS & Clinical Research

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