Eating disorders Flashcards
What are the three types of eating disorder?
Anorexia nervosa
Bulimia nervosa
Eating disorder not otherwise specified (EDNOS) aka other specified feeding and eating disorder (OSFED)
What do all types of eating disorder have in common?
Behaviour around food
Core beliefs and associated concerns
Levels of distress
What are the 2 forms of anorexia nervosa?
Restricting and binging/purging
What is the peak age of anorexia nervosa?
15-18 years
What percentage of those with eating disorders are female?
95%
What is the difference between binging anorexia and bulimia?
Patients with bulimia are of a normal/above normal weight
What is bulimia?
Recurrent binge eating with compensatory behaviour (vomiting, laxitivesm, fasting, exercise). 1 binge per week for 3 months.
Extreme weight and shape concern.
What is the peak age of bulimia?
17-25 years
Which is more common of bulimia and anorexia?
Bulimia
What are possible complications of purging by vomiting?
Acid erosion of teeth, loss of electrolytes can lead to heart attack. Severe psychological effects.
What is binge eating disorder?
Recurrent binge eating (1 per week for 3 months) without compensatory behaviour. Distress about the binge eating.
What is an eating disorder not otherwise specified?
Criteria of the others not met e.g. anorexia above 85% body weight or bulimia with less frequent binges.
Disordered eating characterised by restriction/binging.
50% cases.
What are 4 risk factors for eating disorders?
- Dieting (5x increased risk)
- Body dissatisfaction
- Non-specific risk factors e.g. parental psychopathology, trauma, biological predispositions
- Poor mental health (6x increased risk)
Why are eating disorders more prevalent in adolescents?
- High levels of shape/weight concern. Ways of limiting food often framed as healthy behaviour.
- Food autonomy from parents to refuse control
- Peer impression management- conforming, dieting as social norm.
Adolescence entails a cluster of risky behaviours.
What is the Ancel Keys starvation study (aka the Minnesota Study)?
During WW2, men volunteered to have a daily defecit of 1400 calories to lose 1kg a week. They became obsessed with food and also many physical effects- anaemia, fatigue, apathy, irritability, neurological defecits.
