Major depressive disorder epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mitra Chitsazan, M.D.[2]
Overview
The one-year prevalence of major depressive disorder is approximately 7,000 per 100,000 (7%) of the overall population with marked differences by age groups.
Epidemiology and Demographics
Incidence
- The annual incidence (the number of new cases) of a major depressive episode has been estimated as 1.59% (1.89% in women and 1.10% in men). [1]
Prevalence
- The twelve-month prevalence of major depressive disorder is 7,000 per 100,000 (7%) of the overall population.[1]
Age
- There are marked differences by age groups; for example, the prevalence of major depressive disorder in individuals aged 18-29-year-old is x3 higher than the prevalence in the individuals aged 60-year-old and more. In individuals with the onset of major depressive disorder in early adolescence, the prevalence is 1.5- to 3-fold higher in females than in males. [1]
Gender
- Major depressive disorder is more common in women. [1]
Sociocultrural
- Depressive disorders are more common among single and divorced individuals compared with married individuals. [1]
- There is no association between depressive disorders and socioeconomic status or religion.
Race
- There is no racial predilection to depressive disorders. [1]