Background: This study compares the characteristics of women with anorexia nervosa with those of women who have all the diagnostic features of that disorder except amenorrhoea.
Method: The study uses data from a large community epidemiological survey of the mental health status of household residents in Ontario, Canada. A multi-stage stratified sampling design generated a sample of 4285 females aged 15-64. DSM-III-R diagnoses were made using the Composite International Diagnostic interview.
Results: Eighty-four out of 4285 female respondents met full or partial-syndrome criteria for anorexia nervosa. Comparison of these two groups revealed few statistically significant differences in terms of demographics, psychiatric comorbidity, family history or early experiences.
Conclusions: Amenorrhoea did not discriminate between women with anorexia nervosa and women with all the features except amenorrhoea across a number of relevant variables. The authors question the utility of amenorrhoea as a diagnostic criterion.