Prevalence of physical activity and obesity in US counties, 2001–2011: a road map for action

Obesity and physical inactivity are associated with several chronic conditions, increased medical care costs, and premature death.We used the Behavioral Risk Factor Surveillance System (BRFSS), a state-based random-digit telephone survey that covers the majority of United States counties, and the National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of the US civilian noninstitutionalized population. About...