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. Author manuscript; available in PMC: 2009 Apr 22.
Published in final edited form as: Physiol Behav. 2007 Nov 29;94(1):121–135. doi: 10.1016/j.physbeh.2007.11.037

Table 1.

DSM IV, Diagnostic Criteria for Anorexia Nervosa
A Refusal to maintain body weight at or above a minimally normal weight for age and height (e.g., weight loss leading to maintenance of body weight less than 85% of that expected; or failure to make expected weight gain during period of growth, leading to body weight less than 85% of that expected.)
B Intense fear of gaining weight or becoming fat, even though underweight.
C Disturbance in the way in which one’s body weight or shape is experienced, undue influence of body weight or shape on self-evaluation, or denial of the seriousness of the current low body weight.
D In postmenarcheal females, amenorrhea, i.e., the absence of at least three consecutive menstrual cycles. (A woman is considered to have amenorrhea if her periods occur only following hormone, e.g., estrogen, administration.)
Specify Type:
  • Restricting type: during the current episode of anorexia nervosa, the person has not regularly engaged in binge-eating or purging behavior (i.e., self-induced vomiting or the misuse of laxatives, diuretics, or enemas)

  • Binge-Eating/Purging Type: during the current episode of anorexia nervosa, the person has regularly engaged in binge-eating or purging behavior (i.e., self-induced vomiting or the misuse of laxatives, diuretics, or enemas)

DSM IV, Diagnostic Criteria for Bulimia Nervosa
A Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following
  1. eating, in a discrete period of time (e.g., within any 2-hour period), an amount of food that is definitely larger than most people would eat during a similar period of time and under similar circumstances

  2. a sense of lack of control over eating during the episode (e.g., a feeling that one cannot stop eating or control what or how much one is eating)

B Recurrent inappropriate compensatory behavior in order to prevent weight gain, such as self-induced vomiting; misuse of laxatives, diuretics, enemas, or other medications; fasting, or excessive exercise
C The binge eating and inappropriate compensatory behaviors both occur, on average, at least twice a week for 3 months
D Self-evaluation is unduly influenced by body shape and weight
E The disturbance does not occur exclusively during episodes of anorexia nervosa
Specify Type:
  • Purging type: during the current episode of bulimia nervosa, the person has regularly engaged in self-induced vomiting or the misuse of laxatives, diuretics, or enemas

  • Nonpurging Type: during the current episode of bulimia nervosa, the person has used other inappropriate compensatory behaviors, such as fasting or excessive exercise, but has not regularly engaged in self-induced vomiting or the misuse of laxatives, diuretics, or enemas