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Researchers analyzed National Health and Nutrition Examination Survey data from 1999 to 2010 to identify trends in childhood obesity.
Among infants and toddlers, prevalence of obesity (weight-for-length ≥95th percentile on the CDC's 2000 growth charts) was 9.7% in 2009 to 2010 and had not increased significantly since 1999. The highest prevalence was among Mexican American infants and toddlers (15.7%).
Among children aged 2 to 19 years, 17% were obese (body-mass index [BMI] ≥95th percentile for age and sex) in 2009 to 2010, and 32% were obese or overweight (BMI ≥85% for age and sex). Although prevalence of obesity in children increased from 1999 to 2007, prevalence has not changed significantly since 2007. However, boys had a significantly hi…