DSM-5 contains substantial changes to eating disorder diagnoses. We examined
relative prevalence rates of DSM-IV and DSM-5 eating disorder diagnoses
using Eating Disorder Examination–Questionnaire diagnostic algorithms in 117
community out-patients. DSM-5 criteria produced a reduction in combined
‘other specified feeding or eating disorder’ and ‘unspecified feeding or
eating disorder’ diagnoses from 46% to 29%, an increase in anorexia nervosa
diagnoses from 35% to 47%, the same number of bulimia nervosa diagnoses and
a 5% rate of binge eating disorder diagnoses.