laboratory studies of eating behavior and ha ve greater functional impairment, lower qual-
ity of life, more subjective distress,  and greater psychiatric comorbidity.
Prevalence
Twelve-month prevalence of binge-eating disorder among U.S. adult (age 18 or older) fe-
males and males is 1.6% and 0.8%, respectively. The gender ratio is far less skewed in binge-
eating disorder than in bulimia nervosa. Bing e-eating disorder is as prevalent among fe-