The prevalence of mixed episodes during the course of illness in bipolar disorder

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Objective: To investigate the prevalence of mixed episodes during the course of illness in bipolar disorder. Method: A total of 1620 patients with an ICD-10 diagnosis of bipolar affective disorder at the first psychiatric contact were identified in a period from 1994 to 2003 in Denmark and the prevalence of mixed, depressive and hypomanic/manic episodes were calculated at each episode. Results: The prevalence of mixed episodes increased from the first episode to the tenth episode, however, only for women (6.7% of the first episodes leading to psychiatric care compared with 18.2% of the tenth episodes). For men, the prevalence of mixed episodes was constantly low. At all episodes, the presence of a current mixed episode increased the risk substantially of getting a future mixed episode. Conclusion: Clinicians should pay more attention to mixed episodes, especially among women, as they may represent an increasing treatment challenge as the illness progress
Udgivelsesdato: 2008
Original languageEnglish
JournalActa Psychiatrica Scandinavica
Volume117
Issue number3
Pages (from-to)216-224
Number of pages8
ISSN0001-690X
Publication statusPublished - 2008

ID: 13859719