Related Experiment Videos
Risk factors for bulimia nervosa. A community-based case-control study
C G Fairburn1, S L Welch, H A Doll
1Department of Psychiatry, Oxford University, Warneford Hospital, United Kingdom.
Archives of General Psychiatry
|June 1, 1997
Summary
Bulimia nervosa may stem from general psychiatric risk factors and specific dieting risks. Negative self-evaluation and parental issues were unexpectedly common in bulimia nervosa patients.
Area of Science:
- Psychiatry
- Eating Disorders Research
- Clinical Psychology
Background:
- Eating disorders have multiple, diverse risk factors.
- This study investigated two main categories of risk factors for bulimia nervosa: general psychiatric risks and dieting-specific risks.
Purpose of the Study:
- To test the hypothesis that bulimia nervosa is associated with both general psychiatric risk factors and factors promoting dieting.
- To differentiate risk factors specific to bulimia nervosa from those common to other psychiatric disorders.
Main Methods:
- A case-control study design was employed.
- 102 individuals with bulimia nervosa were compared to 204 healthy controls and 102 individuals with other psychiatric disorders.
- Risk factors were assessed through community-based recruitment to minimize sampling bias.
Main Results:
- Individuals with bulimia nervosa showed significant differences in risk factor exposure compared to healthy controls.
- Fewer differences were observed between bulimia nervosa patients and those with other psychiatric disorders.
- Dieting-related factors, negative self-evaluation, and parental issues (including parental alcohol use disorder) were more prevalent in the bulimia nervosa group.
Conclusions:
- Findings support the dual-factor hypothesis for bulimia nervosa, involving general psychiatric vulnerabilities and dieting-related risks.
- High rates of premorbid negative self-evaluation and parental problems were unexpectedly identified as significant risk factors.