Lecture 12: Eating Disorders: Chapter 11 Flashcards
What are the 8 feeding and eating disorders in the DSM?
- Pica
- Rumination disorder
- Avoidant/restrictive food intake disorder
- Anorexia Nervosa
- Bulimia Nervosa
- Binge-eating disorder
- Other specified feeding or eating disorder
- Unspecified feeding or eating disorder
Which 3 eating disorders occur often in children?
- Pica
- Rumination disorder
- Avoidant/restrictive food intake disorder
What is pica?
Eating nonfood substances for extended periods
What is rumination disorder?
Repeated reurgitation of foods (bring food back to the mouth)
What is avoidant/restrictive food intake disorder?
Diminished interest in food based mostly on the sensory aspects of food
What is nervosa?
It indicates that the loss of appetite is due to emotional reasons
What are the 3 main symptoms of anorexia nervosa?
- Restriction of food that leads to very low body weight; body weight is significantly below normal
- Strong fear of weight gain or behavior that interferes with weight gain
- Distorted body image
How is weight loss typically achieved in anorexia?
Dieting, purging (laxatives, induced vomiting) and excessive exercise
What is the difference in binge eating between anorexia and bulimia?
Bulimia: very big binge: 4000-10000 calories in a very short time
Anorexia: think they have a binge while they don’t (2 slices of bread)
What are the 2 subtypes of anorexia nervosa?
- Restricting
- Binge-eating/purging
How can you assess the severity of anorexia?
with BMI
What is striking in assessing body image in people with anorexia?
They overestimate their current size and ideally would be very thin
When does anorexia typically start?
Early to middle teenage years
How are the gender differences in prevalence for anorexia?
3x more likely in women
What are typical symptoms of anorexia in men?
More emphasis on muscularity as well as thin or lean bodies
Why is there such a large gender difference for anorexia prevalences?
Greater cultural emphasis on women’s beauty, which has promoted a thin body shape as the ideal
What are comorbid disorders with anorexia?
Depression, OCD, specific phobias, panic disorder, various personality disorders
What are the suicide rates among people with anorexia?
5% completing suicide
20% attempting suicide
What are some physical consequences of anorexia?
Low blood pressure, slow heart rate, kidney problems, decline bone mass, dry skin, brittle nails, change in hormones, hair loss, tiredness, weakness, cardiac arrhythmias
What percentage of people recover from anorexia? How long does that take?
50-70%
Takes 7 years approximately. Relapses are common
What is often the cause of death in people with anorexia?
Physical complications (heart failure), especially for people who suffered for years
What is the main difference between anorexia and bulimia?
Anorexia: extreme weight loss
Bulimia: no weight loss
What are the 3 main symptoms of bulimia nervosa?
At least 3 months, once a week
1. Repeated episodes of binge eating
2. Repeated compensatory behaviors to prevent weight gain, such as vomiting
3. Body shape and weight are extremely important for self-evaluation
What are diuretics?
Pills that make you pee a lot and lose liquid in your body. They don’t really help with losing weight
How do you the assess the severity of bulimia?
Amount of compensatory behaviors per week
What are common comorbid disorders of bulimia?
Depression, personality disorders, anxiety disorders, substance use disorders, conduct disorder
How are the suicide rates in bulimia compared to anorexia?
Higher rates than the general population, but substantially lower than in anorexia
What comes first, bulimia or the comorbid disorder? What can we conclude from this?
Bulimia surfaced before substance use disorder
Bulimia predicted the onset of depression, but depression also predicted onset of bulimia symptoms
So each disorder increases risk for the other
What are the physical consequences of bulimia?
Potassium depletion, diarrhea, irregular heart beat, tearing of tissue in the stomach and throat, dental damage, swollen salivary glands
What percentage of people with bulimia recovers? What percentage remains fully symptomatic? What is linked to a better prognosis?
70% recovers
10-20% remains fully symptomatic
Intervening soon after diagnosis has a better prognosis
What are the 2 defining symptoms of binge eating disorder?
At least 3 months, once a week
1. Repeated binge eating episodes
2. Binge eating episodes must include several features (eating fast, eating even if not hungry, eating past feeling full, feeling bad about eating so much)
When are you obese?
When you have a BMI over 30
What is the distinction between bulimia and binge eating disorder?
Binge eating disorder has no compensatory behaviors
How do you assess the severity of binge eating disorder?
The amount of binges per week
Explain how not all obese people meet criteria for binge eating disorder?
Only those who have binge episodes and report feeling a loss of control over their eating qualify for this diagnosis
What are physical consequences of binge eating disorder?
Increased risk diabetes 2, cardiovascular problems, chronic back pain, headaches, sleep problems, anxiety, depression, early onset of menstruation
What is the prognosis of binge eating disorder?
25-82% recover
Duration of recovery may take longer than recovery for anorexia or bulimia