As a group, neither children nor adults saw a decline—a conclusion that the JAMA report makes very clear.
In fact, when considering all children between ages two to 19, the obesity rate did not significantly change from 2003 to 2012. And more alarmingly, 35% of adults were obese in 2012, up from 32% in 2003. That increase, as you can see in the graph above, was mostly concentrated in Americans over age 59.
Overall, the report concludes, "Obesity remains high and thus it is important to continue surveillance."
Now, some states are clearly doing a better job than others at keeping down obesity rates. Here's the Robert Wood Johnson Foundation's look at the obesity rate in each state in 2012:
Although the report found that "there has been some evidence that the rates have not been climbing as rapidly" since 2005, RWJF researchers also concluded that the obesity rate was still higher than 30% in 13 states. Moreover, no state had an obesity rate below 20%.
What's worse, RWJF paints a gloomy picture for the future. It estimates that, if the country continues on its current path, the national obesity rate could reach 50% by 2030.
So don't let the good news about toddler obesity rates fool you. It's promising news, but it's far from "mission accomplished."