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Gender differences in bipolar disorder type I and II

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Suominen K, Mantere O, Valtonen H, Arvilommi P, Leppämäki S, Isometsä E. Gender differences in bipolar disorder type I and II. Objective: 

We investigated gender differences in bipolar disorder (BD) type I and II in a representative cohort of secondary care psychiatric in- and out-patients. Method: 

In the prospective, naturalistic Jorvi Bipolar Study of 191 secondary care psychiatric in- and out-patients, 160 patients (85.1%) could be followed up for 18 months with a life chart. Results: 

After adjusting for confounders, no marked differences in illness-related characteristics were found. However, female patients with BD had more lifetime comorbid eating disorders (P < 0.001, OR = 5.99, 95% CI 2.12–16.93) but less substance use disorders (P < 0.001, OR = 0.29, 95% CI 0.16–0.56) than males. Median time to recurrence after remission was 3.1 months longer among men than women, female gender carrying a higher hazard of recurrence (P = 0.006, HR = 2.00, 95% CI 1.22–3.27). Conclusion: 

Men and women with type I and II BD have fairly similar illness-related clinical characteristics, but their profile of comorbid disorders may differ significantly, particularly regarding substance use and eating disorders. In medium-term follow-up, females appear to have a higher hazard of recurrence than males.
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Keywords: affective disorders; bipolar disorder; follow-up; gender; mood disorder

Document Type: Research Article

Publication date: 2009-12-01

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