Eating disorder a given year. Anorexia affects about 0.4% and bulimia affects about 1.3% of young women in a given year. Up to 4% of women have anorexia, 2% have bulimia, and 2% have binge eating disorder at some point in time. Anorexia and bulimia occur nearly ten times more often in females than males. Typically, they begin in late childhood or early adulthood. Rates of other eating disorders are not clear. Rates of eating disorders appear to be lower in less developed countries. Bulimia nervosa is a disorder characterized by binge eating and purging, as well as excessive evaluation of one's
Eating Disorder Inventory EDI as well as EDI-2, it has been enhanced to reflect more modern theories related to the diagnosis of eating disorders. It was designed for use with females ages 13–53 years. It contains 91 items divided into twelve subscales rated on a 0-4 point scoring system. 3 items are specific to eating disorders and 9 are general psychological scales that while not specific are relevant to eating disorders. It yields six composites: Eating Disorder Risk, Ineffectiveness, Interpersonal Problems, Affective Problems, Overcontrol, General Psychological Maladjustment. It is also a self-report questionnaire administered in twenty minutes. The Eating disorder symptom checklist (EDI-3SC)