Research : 18.4 % of 4-year - olds in the United States are obese . Native Americans , however , are at most risk ; minorities and women at lowest risk . `` To do that , we may need to understand the different family and cultural factors that are at play in these children 's lives . '' Socioeconomic and lifestyle factors play a role in risk for obesity .
Research : 18.4 % of 4-year - olds in the United States are obese . Native Americans , however , are at most risk ; minorities and women at lowest risk . Socioeconomic and lifestyle factors play a role in risk for obesity .