Depression, a psychiatric disorder that affects approximately 7 percent of the U.S. population in a given yearⁱ, is characterized by symptoms such as feelings of sadness, hopelessness, and helplessness, difficulty concentrating, difficulty with sleep, changes in appetite, and thoughts of suicide or suicide attemptsⁱⁱ. For a patient to receive a clinical diagnosis of depression, symptoms must be present most of the day, nearly every day, for at least two weeks. These symptoms often interfere with an individual's ability to effectively function in his or her roles at home, work, and school.

Depression is also associated with a range of other mental health disorders, substance abuse disorders, and physical disorders, which may further reduce an individual's quality of lifeⁱⁱ. The interactive maps below allow the user to examine the prevalence of and risk for medical episodes among patients with depression.

MAPS

Thomson Reuters interactive maps present visual and numeric data on the incidence of disease and the relative risk of disease for depressed patients.These maps are based on data contained in the 2006-2007 MarketScan^® Commercial Claims and Encounters Database.

If you are using Internet Explorer please click on the appropriate link below. (You may be prompted to load an ActiveX plug-in.)

• Overview map: Displays disease incidence and relative risk by general diagnostic category.  
• Detailed map: Displays disease incidence and relative risk by specific diagnostic categories. 

If you are using a browser other than Internet Explorer please click on the appropriate link below.

• Overview map: Displays disease incidence and relative risk by general diagnostic category.  
• Detailed map: Displays disease incidence and relative risk by specific diagnostic categories.