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Epidemiological data on anorexia nervosa in Japan
1Department of Psychosomatic Medicine, Branch Hospital, Faculty of Medicine, University of Tokyo, Japan.
Psychiatry Research
|April 16, 1996
Summary
This study estimated the prevalence of anorexia nervosa in Japan, finding a slight increase in treated patients between 1985 and 1992. The survey highlights the disorder
Area of Science:
- Epidemiology
- Psychiatry
- Public Health
Background:
- Anorexia nervosa (AN) is a serious eating disorder with significant public health implications.
- Understanding the epidemiological trends of AN is crucial for resource allocation and intervention strategies.
Purpose of the Study:
- To estimate the prevalence and trends of anorexia nervosa in Japanese hospitals between 1985 and 1992.
- To provide data on the incidence of AN across different demographic groups in Japan.
Main Methods:
- An epidemiological survey conducted in Japanese hospitals.
- Utilized a questionnaire distributed to 732 institutions.
- Data collected in 1985 and 1992.
Main Results:
- Estimated 3500-4500 anorexia nervosa patients treated in 1985.
- Estimated 4500-4600 anorexia nervosa patients treated in 1992, a slight increase.
- Prevalence rates: 3.6-4.5 per 100,000 general population, 6.3-9.7 per 100,000 females, and 25.2-30.7 per 100,000 females aged 13-29.
Conclusions:
- Anorexia nervosa prevalence in Japan showed a slight increase from 1985 to 1992.
- The 13-29 year-old female population exhibited the highest prevalence rates.
- Further research is needed to understand the contributing factors to these trends.