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Goldney and Fisher (2004) determined that, in a sample of 3,010 individuals from southern portions of Australia calculated a prevalence rate of double depression of 2.2%. [12] Jonas et al. (2003) reported a prevalence rate of double depression in the United States of 3.4%—based upon an assessment of 7,667 Americans. [13]
A review that pooled surveys of mood disorders in different countries up to 2000 found 12-month prevalence rates of 4.1% for major depressive disorder (MDD), 2% for dysthymic disorder and 0.72% for bipolar 1 disorder. The average lifetime prevalence found was 6.7% for MDD (with a relatively low lifetime prevalence rate in higher-quality studies ...
This article needs to be updated. The reason given is: Many outdated sources and information (older than five years). Please help update this article to reflect recent events or newly available information. (July 2024) Medical condition Major depressive disorder Other names Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression Sorrowing Old Man (At ...
[12] [13] Studies conflict on the prevalence of depression in the elderly, but most data suggest there is a reduction in this age group. [14] Depressive disorders are more common in urban than in rural populations and, in general, the prevalence is higher in groups with adverse socio-economic factors (for example in homeless people). [15]
Unspecified Depressive Disorder is designated by the code 311 for depressive disorders. In the DSM-5, Unspecified Depressive Disorder encompasses symptoms that are characteristic of depressive disorders and cause significant impairment in functioning, but do not meet the criteria for the diagnosis of any specified depressive disorders.
An alternate, widely used classification publication is the International Classification of Diseases (ICD), produced by the World Health Organization (WHO). [13] The ICD has a broader scope than the DSM, covering overall health as well as mental health; chapter 6 of the ICD specifically covers mental, behavioral and neurodevelopmental disorders.
The following diagnostic systems and rating scales are used in psychiatry and clinical psychology. This list is by no means exhaustive or complete. This list is by no means exhaustive or complete. For instance, in the category of depression, there are over two dozen depression rating scales that have been developed in the past eighty years.
Research suggests that the prevalence of children with major depressive disorder in Western cultures ranges from 1.9% to 3.4% among primary school children. [9] Among teenagers, up to 9% meet criteria for depression at a given moment and approximately 20% experience depression sometime during adolescence. [ 10 ]