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The World Health Organization has published worldwide incidence and prevalence estimates of individual disorders. Obsessive-compulsive disorder is two to three times as common in Latin America, Africa, and Europe as in Asia and Oceania. [7] Schizophrenia appears to be most common in Japan, Oceania, and Southeastern Europe and least common in ...
The World Mental Health Survey Initiative is a collaborative project by World Health Organization, Harvard University, University of Michigan, and country-based researchers worldwide to coordinate the analysis and implementation of epidemiological surveys of mental and behavioral disorders and substance abuse in all WHO Regions. [1] [2]
Dual diagnosis (also called co-occurring disorders (COD) or dual pathology) [1] [2] is the condition of having a mental illness and a comorbid substance use disorder.There is considerable debate surrounding the appropriateness of using a single category for a heterogeneous group of individuals with complex needs and a varied range of problems.
Mental, neurological, and substance use disorders make a substantial contribution to the global burden of disease (GBD). [12] This is a global measure of so-called disability-adjusted life years (DALY's) assigned to a certain disease/disorder, which is a sum of the years lived with disability and years of life lost due to this disease within the total population.
The World Health Organization Composite International Diagnostic Interview (CIDI) is a structured interview for psychiatric disorders. As the interview is designed for epidemiological studies , it can be administered by those who are not clinically trained and can be completed in a short amount of time.
In the context of mental health, comorbidity frequently refers to the concurrent existence of mental disorders, for example, the co-occurrence of depressive and anxiety disorders. The concept of multimorbidity is related to comorbidity but is different in its definition and approach, focusing on the presence of multiple diseases or conditions ...
Physical and mental health conditions can adversely impact the other through a number of pathways, and have significant impact on health and wellbeing. [26] For people whose long-term conditions include severe mental illness , the lifespan can be 10–20 years less than the general population. [ 27 ]
According to Statistics Canada (2018), approximately one in five Canadians aged 15 years and older experience a substance use disorder in their lifetime. [81] In Ontario specifically, the disease burden of mental illness and addiction is 1.5 times higher than all cancers together and over 7 times that of all infectious diseases. [82]