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200 million. Major depressive disorder ( MDD ), also known as clinical depression, is a mental disorder [ 8] characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities. Introduced by a group of US clinicians in the mid-1970s, [ 9] the term was adopted by the ...
A major depressive episode ( MDE) is a period characterized by symptoms of major depressive disorder. Those affected primarily exhibit a depressive mood for at least two weeks or more, and a loss of interest or pleasure in everyday activities. Other symptoms can include feelings of emptiness, hopelessness, anxiety, worthlessness, guilt ...
Mixed anxiety–depressive disorder ( MADD) is a diagnostic category that defines patients who have both anxiety and depressive symptoms of limited and equal intensity accompanied by at least some autonomic nervous system features. Autonomic features are involuntary physical symptoms usually caused by an overactive nervous system, such as panic ...
The Major Depression Inventory ( MDI) is a self-report mood questionnaire developed by the World Health Organization. The instrument was constructed by a team led by Professor Per Bech, a psychiatrist based at Frederiksborg General Hospital in Denmark. [1] The MDI differs from many other self-report inventories, such as the Beck Depression ...
Multiple sclerosis. Multiple sclerosis is a chronic demyelinating disease in which the myelin sheaths of cells in the brain and spinal cord are irreparably damaged. Symptoms of depression are very common in patients at all stages of the disease and may be exacerbated by medical treatments, notably interferon beta-1a.
The ICD-10 established a set of diagnostic criteria for PCS in 1992. [38] In order to meet these criteria, a patient has had a head injury "usually sufficiently severe to result in loss of consciousness" [33] [39] and then develop at least three of the eight symptoms marked with a check mark in the table at right under "ICD-10" within four weeks.
The International Classification of Diseases, Clinical Modification (ICD-9-CM) was an adaptation created by the US National Center for Health Statistics (NCHS) and used in assigning diagnostic and procedure codes associated with inpatient, outpatient, and physician office utilization in the United States. The ICD-9-CM is based on the ICD-9 but ...
Endogenous depression (melancholia) is an atypical subclass of major depressive disorder (clinical depression). It could be caused by genetic and biological factors. [ 1] Endogenous depression occurs due to the presence of an internal (cognitive, biological) stressor instead of an external (social, environmental) stressor. [ 2]