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The global estimated lifetime prevalence of bipolar disorder among adults range from 1 to 3 percent. [63] The annual incidence is estimated to vary from 0.3 to 1.2 percent worldwide. [23] According to the World Mental Health Survey Initiative, the lifetime prevalence of BP-II was found to be 0.4%, with a 12-month prevalence of 0.3%. [64]
"Practice parameter for the assessment and treatment of children and adolescents with bipolar disorder". Journal of the American Academy of Child and Adolescent Psychiatry. 46 (1): 107– 25. doi: 10.1097/01.chi.0000242240.69678.c4. PMID 17195735. "Mood Disorder Questionnaire for Parents of Adolescents" (PDF). Bipolar Network News. 28 August 2012.
It is estimated that roughly 1% of the adult population has bipolar I, a further 1% has bipolar II or cyclothymia, and somewhere between 2% and 5% percent have "sub-threshold" forms of bipolar disorder. Furthermore, the possibility of getting bipolar disorder when one parent is diagnosed with it is 15–30%.
For most people with bipolar types 1 and 2, the depressive episodes are much longer than the manic or hypomanic episodes. [24] Since a diagnosis of bipolar disorder requires a manic or hypomanic episode, many affected individuals are initially misdiagnosed as having major depression and treated with prescribed antidepressants. [48]
Bipolar I disorder requires confirmation of only 1 full manic episode for diagnosis, but may be associated with hypomanic and depressive episodes as well. [7] Diagnosis for bipolar II disorder does not include a full manic episode; instead, it requires the occurrence of both a hypomanic episode and a major depressive episode. [ 7 ]
The Hypomania Checklist (HCL-32) is a questionnaire developed by Dr. Jules Angst to identify hypomanic features in patients with major depressive disorder in order to help recognize bipolar II disorder and other bipolar spectrum disorders [1] when people seek help in primary care and other general medical settings.
The K-SADS-PL is used to screen for affective and psychotic disorders as well as other disorders, including, but not limited to Major Depressive Disorder, Mania, Bipolar Disorders, Schizophrenia, Schizoaffective Disorder, Generalized Anxiety, Obsessive Compulsive Disorder, Attention Deficit Hyperactivity Disorder, Conduct Disorder, Anorexia Nervosa, Bulimia, and Post-Traumatic Stress Disorder. [4]
Bipolar disorder is a mental disorder with cyclical periods of depression and periods of elevated mood. [1] The elevated mood is significant and is known as mania , a severe elevation that can be accompanied by psychosis in some cases, or hypomania , a milder form of mania.