Table 1.

Diagnostic Criteria for Eating Disorders

Subthreshold anorexia nervosa	BMI of between 90% and 85% of that expected for age and gender Definite fear of weight gain more than 25% of the days for at least 3 months Weight and shape were definitely an aspect of self-evaluation Missed one period in a three month period (unless on birth control)
Threshold anorexia nervosa	BMI of less than 85% of that expected for age and gender Definite fear of weight gain more than 50% of the days for at least 3 months Weight and shape were one of the main aspects of self-evaluation Missing menstrual cycles in a three month period (unless on birth control)
Subthreshold bulimia nervosa	At least 2 uncontrollable binge eating episodes (a.k.a., objective binge eating episodes) per month for at least 3 months At least 2 compensatory behavior episodes (i.e., self-induced vomiting, laxatives use, diuretic use, fasting, and excessive exercise to compensate for overeating) per month for at least 3 months Weight and shape was definitely an aspect of self-evaluation
Theereshold bulimia nervosa	At least 8 uncontrollable binge eating episodes per month for at least 3 months At least 8 compensatory behavior episodes per month for at least 3 months Weight and shape was definitely one of the main aspects of self-evaluation
Subthreshold binge eating disorder	At least 2 uncontrollable binge eating episodes/days per month for at least 6 months Less than 1 compensatory behaviors on average per month during this period Marked distress about binge eating Binge eating was characterized by 3 or more of the following: rapid eating, eating until uncomfortably full, eating large amounts when not physically hungry, eating alone because of embarrassment, feeling disgusted, depressed, or guilty after overeating
Threshold binge eating disorder	At least 8 uncontrollable binge eating episodes/days per month for at least 6 months Less than 1 compensatory behaviors on average per month during this period Marked distress about binge eating Binge eating was characterized by 3 or more of the following; rapid eating, eating until uncomfortably full, eating large amounts when not physically hungry, eating alone because of embarrassment, feeling disgusted, depressed, or guilty after overeating
Purging disorder	At least 8 episodes of self-induced vomiting or diuretic/laxative use for weight control purposes per month for at least 3 months Less than 1 uncontrollable binge eating episode on average per month during this period Weight and shape was definitely an aspect of self-evaluation

Note: A diagnosis of threshold or subthreshold AN took precedence over threshold and subthreshold diagnosis of BN and BED, and PD. Although it was not possible with the definitions we used, a diagnosis of threshold or subthreshold BN took precedence over threshold or subthreshold BED and PD.