Fatter and Fatter As you see, the incidence of obesity (defined here as a BMI above the 95th percentile, according to the Centers for Disease Control and Prevention 2000 growth charts) increases as children grow older. Not shown is the rate in infancy, which is significantly lower for every group. The “All Groups” rate includes children of groups not shown separately, such as biracial, Asian, Hawaiian, Alaskan native, and American Indian.

Source: Ogden et al., 2012.