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==Overview==
==Overview==
The one-year prevalence of [[major depressive disorder]] is approximately 7,000 per 100,000 (7%) of the overall population. 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. <ref name=DSMV>{{cite book | title = Diagnostic and statistical manual of mental disorders : DSM-5 | publisher = American Psychiatric Association | location = Washington, D.C | year = 2013 | isbn = 0890425558 }}</ref> About twice as many females as males report or receive treatment for clinical depression.
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.
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.


==Epidemiology and Demographics==
==Epidemiology and Demographics==
The twelve-month prevalence of clinical depression is 7,000 per 100,000 (7%) of the overall population.<ref name=DSMV>{{cite book | title = Diagnostic and statistical manual of mental disorders : DSM-5 | publisher = American Psychiatric Association | location = Washington, D.C | year = 2013 | isbn = 0890425558 }}</ref> In some countries, such as [[Australia]], one in four women and one in six men will suffer from depression. In Canada, major depression affects approximately 1.35 million people, and in the [[United States]] approximately 14 million adults per year.<ref>Kessler RC, McGonagle KA, Zhao S, et al. Lifetime and 12-month prevalence of DSM-III-R psychiatric disorders in the United States: results from the National Comorbidity Survey. Arch Gen Psychiatry 1994;51:8-19.</ref> An estimated 121 million people worldwide currently suffer from depression.<ref>[http://www.who.int/mental_health/management/depression/definition/en/ WHO | Depression]</ref>


People who have had one episode of depression may be more than normally likely to have more episodes in the future, so the first time a young person becomes depressed is important both as a personal and public health concern.<ref>Bos et al. (2005). Cognitive, physiological, and personality correlates of recurrence of depression. Journal of Affective Disorders 87 (2005) 221-229.</ref>
===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). <ref name=DSMV>{{cite book | title = Diagnostic and statistical manual of mental disorders : DSM-5 | publisher = American Psychiatric Association | location = Washington, D.C | year = 2013 | isbn = 0890425558 }}</ref>  


About twice as many females as males report or receive treatment for clinical depression, though this imbalance is shrinking over the course of recent history; This difference seems to completely disappear after the age of 50&ndash;55. Clinical depression is currently the leading cause of  [[disability]] in North America, and is expected to become the second leading cause of disability worldwide (after [[heart disease]]) by the year 2020, according to the [[World Health Organization]].<ref>{{cite journal | last = Murray | first = C.J.L. | coauthors = Lopez, A.D. |date=1997 | title = Alternative projections of mortality and disability by cause 1990-2020: Global Burden of Disease Study | journal = Lancet | volume = 349 | pages = 1498?1504 }}</ref>  
===Prevalence===
*The twelve-month prevalence of major depressive disorder is 7,000 per 100,000 (7%) of the overall population.<ref name=DSMV>{{cite book | title = Diagnostic and statistical manual of mental disorders : DSM-5 | publisher = American Psychiatric Association | location = Washington, D.C | year = 2013 | isbn = 0890425558 }}</ref>  


Recent studies suggest that the diagnostic criteria for depression are far too broad, resulting in diagnosis of clinical depression in people who are not truly suffering from the disorder and who have shown normal responses to negative events.<ref>{{cite news |first=Shankar |last=Vedantam |title=Criteria for Depression Are Too Broad, Researchers Say |url=http://www.washingtonpost.com/wp-dyn/content/article/2007/04/02/AR2007040201693.html?hpid=topnews |publisher=''[[Washington Post]]'' |date=2007-04-03 |accessdate=2007-09-10 }}</ref>
===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.
 
===Gender===
*Major depressive disorder is more common in women.  
 
===Sociocultrural===
*Depressive disorders are more common among single and divorced individuals compared with married individuals.  
*There is no association between depressive disorders and socioeconomic status or religion.
 
===Race===
*There is no racial predilection to depressive disorders.


==References==
==References==

Latest revision as of 12:49, 7 May 2021

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Kiran Singh, 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.

Gender

  • Major depressive disorder is more common in women.

Sociocultrural

  • Depressive disorders are more common among single and divorced individuals compared with married individuals.
  • There is no association between depressive disorders and socioeconomic status or religion.

Race

  • There is no racial predilection to depressive disorders.

References

  1. 1.0 1.1 Diagnostic and statistical manual of mental disorders : DSM-5. Washington, D.C: American Psychiatric Association. 2013. ISBN 0890425558.

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