The prevalence of mixed episodes during the course of illness in bipolar disorder |
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Authors: | Kessing L V |
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Institution: | Department of Psychiatry, University of Copenhagen, Rigshospitalet, Denmark. lars.kessing@rh.dk |
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Abstract: | 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. |
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Keywords: | mixed episode mixed mania bipolar disorder gender longitudinal ICD‐10 |
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