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Developing a Rat Model for Bipolar Disorder

Developing a Rat Model for Bipolar Disorder

Published on: May 2, 2025

Gender differences in bipolar disorder type I and II.

K Suominen¹, O Mantere, H Valtonen

¹Department of Mental Health and Alcohol Research, National Public Health Institute, Helsinki, Finland.

Acta Psychiatrica Scandinavica

|May 30, 2009

Summary

Gender differences in bipolar disorder (BD) show women have higher rates of eating disorders and a greater risk of recurrence, while men report more substance use disorders. Illness characteristics are otherwise similar.

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Published on: March 8, 2018

Area of Science:

Psychiatry
Clinical Psychology
Neuroscience

Background:

Bipolar disorder (BD) affects men and women, but potential gender-specific differences in clinical presentation and comorbidities require investigation.
Understanding these differences is crucial for tailored treatment strategies and improved patient outcomes.

Purpose of the Study:

To examine gender disparities in illness characteristics and comorbidities among patients with bipolar disorder (BD) type I and II.
To assess gender-related differences in the medium-term recurrence of bipolar disorder.

Main Methods:

A prospective, naturalistic study of 191 secondary care psychiatric patients diagnosed with bipolar disorder.
160 patients were followed for 18 months using life chart methodology to record illness trajectories.

Main Results:

No significant gender differences were observed in core illness-related characteristics after adjusting for confounders.
Female patients exhibited higher rates of lifetime comorbid eating disorders and lower rates of substance use disorders compared to males.
Women with bipolar disorder had a significantly higher hazard of recurrence within the 18-month follow-up period.

Conclusions:

While core clinical features of bipolar disorder are similar between genders, significant differences exist in comorbid conditions, particularly eating and substance use disorders.
Female gender is associated with an increased risk of bipolar disorder recurrence in the medium term.