CDC: Diabetes, Obesity Highest in South

The estimates come from the agency′s Behavioral Risk Factor Surveillance System (BRFSS), which uses self–reported data from state–based adult telephone surveys, and 2007 census information. The information may help public health workers, health care providers, community organizations, and policymakers focus on high–risk regions to prevent type 2 diabetes and its complications as well as other chronic diseases linked to obesity, including heart disease, stroke, and some cancers.

The proportion of U.S. adults who are obese was 26.1 percent in 2008, according to BRFSS data. CDC estimates that nearly 8 percent of the population, or about 24 million people, have diabetes. Of these, 5.7 million are undiagnosed.

“The small–area estimates for obesity will be an important tool to help communities better understand and battle this serious public health problem. Communities are in the best position to prevent and reduce obesity among their citizens through innovative programs," said Dr. William H. Dietz, director of CDC's Division of Nutrition, Physical Activity and Obesity.

The medical costs of obesity reached an estimated $147 billion in 2008, and the medical costs of diabetes were $116 billion. People with diagnosed diabetes have medical costs that are 2.3 times higher than those without the disease.

Obesity is one of several factors linked to type 2 diabetes. Where people live, how much money they earn, their culture and their family history also play a role. An unhealthy diet, lack of physical activity, and socioeconomic factors contribute to both obesity and type 2 diabetes as well as to complications of diabetes. Some population groups also are at higher risk, including a number of racial and ethnic minorities.