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Data from 2015-2016 show that nearly 1 in 5 school age children and young people (6 to 19 years) in the United States has obesity

Childhood obesity is a growing problem in the U.S., according to two new studies that suggest some recent reports of progress may have been incorrect, or that a downturn was fleeting at best.

Just four years ago, the U.S. Centers for Disease Control and Prevention announced that childhood obesity rates had leveled off and touted a dramatic 43 percent decline in obesity among kids ages 2 to 5 years during a 10-year period ending in 2012.

Now, however, it appears that childhood obesity has been steadily climbing for both boys and girls since 1999, researchers report in Pediatrics. 

More recently, there has also been a sharp increase in severe obesity among kids 2 to 5 years old.

‘Obesity is not going away, and all kids are still at risk,’ said lead author Asheley Cockrell Skinner of Duke University in Durham, North Carolina.

‘This is not surprising, necessarily, but it is disheartening,’ Skinner said by email. 

‘It tells us that our efforts to improve the health of children are not reaching across the country.’

Skinner and colleagues examined data from the CDC’s National Health and Nutrition Examination Survey (NHANES), looking at data on children’s height and weight collected in two-year cycles starting with 1999-2000 and continuing through 2015-2016.

Overall, roughly 29 percent of kids were overweight and another 20 percent were obese at the start of the study. 

By the end, about 35 percent of children were overweight and another 26 percent were obese.

Obesity and severe obesity also increased sharply for kids ages 2 to 5 and for teen girls ages 16 to 19 in 2015-2016, compared to the previous two-year survey cycle.

White and Asian American children had significantly lower rates of obesity than kids of other racial and ethnic groups, including African American and Hispanic children, the study also found.

A separate study in Pediatrics focused only on the 2.1 percent of children ages 2 to 5 with severe obesity and found these kids were more likely to be from racial or ethnic minority groups.

Compared with white children, Hispanic kids this age were more than twice as likely to be obese, and African American kids had 70 percent higher odds, this study found.

Young children also had at least twice the odds of obesity when they were poor or had parents who were single or had limited education. Children who weren’t breastfed were 50 percent more likely to be obese, the study also found.

Kids who were severely obese also had twice the odds of spending four or more hours a day in front of screens, compared to non-obese children.  


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