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Multi-impulsivity among bulimic patients in Japan.

H Matsunaga¹, N Kiriike, Y Iwasaki

¹Department of Neuropsychiatry, Osaka City University Medical School, Osaka, Japan.

The International Journal of Eating Disorders

|March 1, 2000

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Thirty percent of Japanese patients with bulimia nervosa (BN) exhibit multi-impulsivity (MI), showing similar clinical and psychopathological traits to Western BN patients. This suggests a potential culturally free link between BN and MI.

Area of Science:

Psychiatry
Clinical Psychology
Behavioral Science

Background:

Bulimia nervosa (BN) may include a subgroup with significant impulsivity issues.
Cross-cultural studies are needed to understand the prevalence and characteristics of impulsivity in BN patients globally.

Purpose of the Study:

To assess impulsive behaviors in Japanese patients with bulimia nervosa.
To compare these findings with Western populations to explore cross-cultural similarities in multi-impulsivity (MI) within BN.

Main Methods:

Sixty-four BN patients in Japan were evaluated for impulsive behaviors.
Multi-impulsivity (MI) was defined using established criteria from Fichter et al. (1994).

Main Results:

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Nineteen patients (30%) met the criteria for multi-impulsivity (MI).

BN patients with MI demonstrated more severe clinical features, including concurrent depressive and anxious symptoms, poorer global functioning, and a higher prevalence of borderline personality disorder compared to those without MI.

Conclusions:

Japanese BN patients with MI share clinical and psychopathological characteristics with their Western counterparts.
The findings suggest that the link between bulimia nervosa and multi-impulsivity may be independent of cultural factors.