Eating disorders Flashcards
What are the four main eating disorder diagnoses?
Anorexia nervosa
Bulimia nervosa
Other specified feeding and eating disorders (OSFED)
Binge eating disorder
What do eating disorders have in common?
- behaviour around food
- core beliefs and associated concerns
- levels of distress
What are the diagnostic features of anorexia nervosa?
-active maintenance of low body weight
What are the characteristics of anorexia nervosa?
Age at onset: peaks at 15 & 18 years
Prevalence: 0.5% girls aged 15-18
Sex ratio: 95% female
Impairment: severe physiological and psychological effects all organ systems - starvation
What are the diagnostic features of bulimia nervosa?
Recurrent binge eating - large amounts quickly, loss of control
Compensatory behaviour - vomiting, laxatives, fasting, exercise
Extreme shape & weight concern
Binge frequency (1/wk for 3 months)
Not anorexia nervosa
What are the characteristics of bulimia nervosa?
Age at onset: late adolescence, young adult
Prevalence: 1-3% girls aged 18-25.
Sex ratio: 95% female
Impairment: complications of purging, severe psychological effects
What are the diagnostic features of binge eating disorder?
Recurrent binge eating Large amounts quickly, loss of control Features of binge episodes (to distinguish from overeating) Marked distress regarding binge eating No compensatory behaviour Binge frequency (1/wk for 3 months) Not bulimia nervosa or anorexia nervosa
What are the characteristics of OSFED?
Criteria not met e.g. anorexia nervosa
(above 85% body weight), bulimia nervosa (less frequent binge episodes)
Disordered eating characterized by restriction or by binge eating
What are ‘carriers’ in the socio-cultural model of eating disorders?
Media
Peers
Family
What are ‘mediators’ in the socio-cultural model of eating disorders?
Self esteem
Body weight
What are specific risk factors for EDs?
Body dissatisfaction risk factors - contextual/physical/developmental
eg negative body image, weight preoccupation, dieting
What are non-specific risk factors for EDs?
Self-regulatory risk factors - parental psychopathology or insensitivity/trauma/biological or temperamental predispositions
eg low self-esteem, affective dysregulation, insecure attatchment