Major Depressive Disorder

Major Depressive Disorder


Major depression is one of the most common mental disorders in the United States. For some individuals, major depression can result in severe impairments that interfere with or limit one’s ability to carry out major life activities.

The past year prevalence data presented here for major depressive episode are from the 2017 National Survey on Drug Use and Health (NSDUH). The NSDUH study definition of major depressive episode is based mainly on the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5):

  • A period of at least two weeks when a person experienced a depressed mood or loss of interest or pleasure in daily activities, and had a majority of specified symptoms, such as problems with sleep, eating, energy, concentration, or self-worth.
  • No exclusions were made for a major depressive episode symptoms caused by medical illness, substance use disorders, or medication.

Additional information can be found on the NIMH Health Topics page on Depression.

Above information is taken from NIMH Website.