Depressive Disorders Major Depressive Disorder Bipolar Disorder Suicide Bipolar Disorder (Manic Depression)
Mental Disorders in America (from NIMH)
Mental disorders are common in the United States and internationally. An estimated 22.1 percent of
Americans ages 18 and older — about 1 in 5 adults — suffer from a diagnosable mental disorder in a given year.
When applied to the 1998 U.S. Census residential population estimate, this figure translates to 44.3 million
people. In addition, 4 of the 10 leading causes of disability in the U.S. and other developed countries are
mental disorders — major depression, Bipolar disorder, schizophrenia, and obsessive-compulsive disorder. Many
people suffer from more than one mental disorder at a given time.
In the U.S., mental disorders are diagnosed based on the Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV).
- Depressive disorders encompass major depressive disorder, dysthymic disorder, and bipolar disorder. Bipolar disorder is included because people with this illness have depressive episodes as well as manic episodes.
- Approximately 18.8 million American adults, or about 9.5 percent of the U.S. population age 18 and older in a given year, have a depressive disorder
- Nearly twice as many women (12.0 percent) as men (6.6 percent) are affected by a depressive disorder each year. These figures translate to 12.4 million women and 6.4 million men in the U.S.
- Depressive disorders may be appearing earlier in life in people born in recent decades compared to the past
- Depressive disorders often co-occur with anxiety disorders and substance abuse
- Major depressive disorder is the leading cause of disability in the U.S. and established market economies worldwide
- Major depressive disorder affects approximately 9.9 million American adults, or about 5.0 percent of the U.S. population age 18 and older in a given year
- Nearly twice as many women (6.5 percent) as men (3.3 percent) suffer from major depressive disorder each year. These figures translate to 6.7 million women and 3.2 million men
- While major depressive disorder can develop at any age, the average age at onset is the mid-twenties
- Bipolar disorder affects approximately 2.3 million American adults, or about 1.2 percent of the U.S. population age 18 and older in a given year
- Men and women are equally likely to develop bipolar disorder
- The average age at onset for a first manic episode is the early twenties
- In 2000, 29,350 people died by suicide in the U.S.
- More than 90 percent of people who kill themselves have a diagnosable mental disorder, commonly a depressive disorder or a substance abuse disorder
- The highest suicide rates in the U.S. are found in white men over age 85
- In 2000, suicide was the third leading cause of death among 15 to 24 year olds
- Four times as many men as women die by suicide; however, women attempt suicide two to three times as often as men
Bipolar Disorder (Manic-Depression)
- Almost one-third of six to twelve year old children diagnosed with major depression will develop bipolar disorders within a few years. (Journal of the American Academy of Child and Adolescent Psychiatry)




