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Psychiatric epidemiology is a field which studies the causes of mental disorders in society, as well as conceptualization and prevalence of mental illness. It is a subfield of the more general epidemiology. It has roots in sociological studies of the early 20th century.
The prevalence of mental disorders has been studied around the world, providing estimates on how common mental disorders are. Different criteria or thresholds of severity have sometimes been used. Different criteria or thresholds of severity have sometimes been used.
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.
Mental health prevention is defined as intervening to minimize mental health problems (i.e. risk factors) by addressing determinants of mental health problems before a specific mental health problem has been identified in the individual, group, or population of focus with the ultimate goal of reducing the number of future mental health problems ...
The epidemiology of child psychiatric disorders is the study of the incidence, prevalence, and distribution of conditions in child and adolescent psychiatry. Subfields of pediatric psychiatric epidemiology include developmental epidemiology, which focuses on the genetic and environmental causes of child psychiatric disorders.
Health causes could be related to mental health diagnosis such as depression, schizophrenia, anxiety disorders or traumatic brain injuries. [4] Around 46% of suicide cases had previously been diagnosed with a mental health disorder. This is a fluctuating estimate due to the fact that mental health is often overlooked and under reported.
The epidemiology of depression has been studied across the world. Depression is a major cause of morbidity and mortality worldwide, as the epidemiology has shown. [ 1 ] Lifetime prevalence estimates vary widely, from 3% in Japan to 17% in India.
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]