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LEIGH FALLS, PH.D., LPCS, RPTS, ACS, NCC 
1 
Eating Disorders
Eating Disorders: 
How much is enough?
Why is this so important? 
3 
 81% of 10 year olds are afraid of being fat 
 51% of 9 & 10 year old girls feel better about themselves if they are 
on a diet 
 91% college women who had attempted to control their weight 
through dieting 
 22% dieted "often" or "always“ 
 95% of all dieters will regain their lost weight in 1-5 years 
 55% of "normal dieters" progress to pathological dieting 
 35% of these progress to partial or full-syndrome eating disorders 
 Americans spend over $50 billion on dieting and products each 
year 
 58 million of the adult U.S. population are overweight or obese 
 up from 25% of American adults in 1980 to 33% today 
Adapted from: http://www.divorcedoc.com/psychotherapy/statistics.htm
What Causes Eating Disorders? 
4 
Most theorists subscribe to a multidimensional 
risk perspective: 
 Several key factors place individuals at risk 
 More factors = greater risk 
 Leading factors: 
 Sociocultural conditions (societal and family pressures) 
 Psychological problems (ego, cognitive, and mood disturbances) 
 Biological factors
Eating Disorders:Etiology 
5 
• Genetics 
– Relatives of patients with anorexia are eight times more 
likely to develop an eating disorder 
– Twin studies: 
• Monozygotic twins have a 58-76% concordance, while dizygotic 
twins with 35-45% concordance 
• Monozygotic twins have a 46%-56% concordance, while dizygotic 
twins with 18%-35% concordance for bulimia 
• Neurochemical 
– Serotonin precursor (5-HIAA) reduced in anorexia when 
ill and normalize upon recovery 
– Recovery from bulima associated with high levels of 
serotonin
Eating Disorders:Etiology 
Psychosocial 
6 
 Difficulty with transition to adulthood 
 Changes of body associated with puberty 
 Adult autonomy 
 Stressful times of transition 
 Family conflicts 
 Ineffective attempts to cope with stress
What Causes Eating Disorders? 
Societal Pressures 
7 
Many theorists believe that current Western 
standards of female attractiveness have contributed 
to increases in eating disorders 
 Standards have changed throughout history toward a thinner 
ideal 
 Miss America contestants have declined in weight by 0.28 lbs/yr; 
winners have declined by 0.37 lbs/yr 
 Playboy centerfolds have lower average weight, bust, and hip 
measurements than in the past
What Causes Eating Disorders? Societal Pressures 
8 
Certain groups are at greater risk from these 
pressures: 
 Models, actors, dancers, and certain athletes 
 Of college athletes surveyed, 9% met full criteria for an eating 
disorder while another 50% had symptoms 
 20% of surveyed gymnasts met full criteria for an eating disorder
What Causes Eating Disorders? Societal Pressures 
9 
Societal attitudes may explain economic and racial 
differences seen in prevalence rates 
 In the past, white women of higher SES expressed more 
concern about thinness and dieting 
 These women had higher rates of eating disorders than African 
American women or white women of lower SES 
 Recently, dieting and preoccupation with food, along with rates 
of eating disorders, are increasing in all groups
What Causes Eating Disorders? Societal Pressures 
10 
The socially accepted prejudice against overweight 
people may also add to the “fear” and preoccupation 
about weight 
 About 50% of elementary and 61% of middle school girls are 
currently dieting
Eating Disorders: Sociocultural Factors 
11 
Changes in Body Image over Time
Did you know that… 
12 
15% of young women in the United States (who are 
NOT diagnosed with an eating disorder), have 
disordered eating attitudes and behavior, according 
to the National Institute of Mental Health.
Eating Disorders: 
Sociocultural Factors 
13 
• Anne Becker, Harvard researcher, studied the influence of 
American television on eating patterns in Fiji 
– Fiji had traditionally been a nation that has cherished the fuller figure 
• Since the arrival of TV to the island of Fiji in 1995, the 
percentage of eating disorders among young girls aged 15-19 
years increased from 3% to 15% 
• The number of girls dieting (62 per cent) and girls feeling "too 
big or fat" (74 per cent) has also increased since 1995. 
• It is believed that the sudden infusion of Western cultural images 
and values through TV changed the way Fijian girls view 
themselves and their bodies
What Causes Eating Disorders? Family Environment 
14 
Families may play an important role in the 
development of eating disorders 
 As many as half of the families of those with eating disorders 
have a long history of emphasizing thinness, appearance, and 
dieting 
 Mothers of those with eating disorders are more likely to be 
dieters and perfectionistic themselves
What Causes Eating Disorders? Family Environment 
15 
Abnormal family interactions and forms of 
communication within a family may also set the 
stage for an eating disorder 
 Minuchin cites “enmeshed family patterns” as causal 
factors of eating disorders 
 These patterns include overinvolvement in, and overconcern 
about, family member’s lives
What Causes Eating Disorders? 
Ego Deficiencies and Cognitive Disturbances 
16 
Bruch argues that eating disorders are the result of 
disturbed mother–child interactions, which lead to 
serious ego deficiencies in the child and to severe 
cognitive disturbances
What Causes Eating Disorders? 
Ego Deficiencies and Cognitive Disturbances 
17 
According to Bruch, parents may respond to their 
children either effectively or ineffectively 
 Effective parents accurately attend to a child’s biological 
and emotional needs 
 Ineffective parents fail to attend to child’s internal needs; 
they feed when the child is anxious, comfort when the 
child is tired, etc. 
There is some empirical support for Bruch’s theory 
from clinical reports
What Causes Eating Disorders? Mood Disorders 
18 
Many people with eating disorders, particularly 
those with bulimia nervosa, experience symptoms of 
depression 
 Theorists believe mood disorders may “set the stage” for eating 
disorders
What Causes Eating Disorders? Mood Disorders 
19 
There is empirical support for the claim that mood 
disorders set the stage for eating disorders: 
 Many more people with an eating disorder qualify for a 
clinical diagnosis of major depressive disorder than do 
people in the general population 
 Close relatives of those with eating disorders seem to 
have higher rates of mood disorders 
 People with eating disorders, especially those with 
bulimia nervosa, have low levels of serotonin 
 Symptoms of eating disorders are helped by 
antidepressant medications
What Causes Eating Disorders? BiologicalFactors 
20 
Biological theorists suspect certain genes may leave 
some people particularly susceptible to eating 
disorders 
 Consistent with this model: 
 Relatives of people with eating disorders are 6 times more likely to 
develop the disorder themselves 
 Identical (MZ) twins with bulimia: 23% 
 Fraternal (DZ) twins with bulimia: 9% 
 These findings may be related to low serotonin
What Causes Eating Disorders? Biological Factors 
21 
Other theorists believe that eating disorders may be 
related to dysfunction of the hypothalamus 
 Researchers have identified two separate areas that control 
eating: 
 Lateral hypothalamus (LH) 
 Ventromedial hypothalamus (VMH)
What Causes Eating Disorders? Biological Factors 
22 
Some theorists believe that the LH and VMH are 
responsible for weight set point – a “weight 
thermostat” of sorts 
 Set by genetic inheritance and early eating practices, this 
mechanism is responsible for keeping an individual at a 
particular weight level 
 If weight falls below set point: Ý hunger, ß metabolism Þ binges 
 If weight rises above set point: ß hunger, Ý metabolism 
 Dieters end up in a fight against themselves to lose weight
Eating Disorders: Risk Factors 
23 
Activities with 
heightened 
weight/shape demands 
Childhood obesity 
Familial psychiatric 
history and/or obesity 
Diabetes 
Routine Dieting or 
restrained eating 
Premorbid personality 
disorder(s)
Eating Disorders 
24 
Although not historically true, current Western 
beauty standards equate thinness with health and 
beauty 
 Thinness has become a national obsession! 
There has been a rise in eating disorders in the 
past three decades 
Two main diagnoses: 
 Anorexia nervosa 
 Bulimia nervosa
Eating Disorders: DSM-5 
Eating Disorders 
25 
 Anorexia Nervosa 
 Bulimia Nervosa 
 Binge Eating Disorder 
DSM-5
ED Changes from DSM IV TR- DSM 5 
DSM IV TR 
Pica, Rumination, and 
Avoidant/Restrictive in 
chapter of disorders 
usually 1st diagnosed in 
infancy, childhood, or 
adolescence 
No Binge Eating 
Disorder 
DSM 5 
Pica Rumination, & 
Avoidant/Restrictive in 
ED chapter 
Recognition of Binge 
Eating Disorder 
Anorexia Nervosa & 
Bulimia Nervosa 
criteria updated
Eating Disorders 
Can only be diagnosed with one of the following at 
any given time: 
 Rumination Disorder 
 Avoidant/Restrictive Food Intake Disorder 
 Anorexia Nervosa 
 Bulimia Nervosa 
 Binge Eating Disorder
EDs: (307.51/F50.8)Binge Eating Disorder (p. 380) 
DSM IV TR: 
 Appendix B: Criteria Sets and Axes Provided for Further 
Study 
 Diagnosed as ED NOS 
DSM 5: 
 Added BED to Feeding and Eating Disorders chapter 
 Recognition that a large percentage of ED NOS diagnoses 
could be attributed to BED 
 More severe and less common than overeating and 
associated with significant physical and psychological 
problems 
 Criteria A-E will must be met
Binge Eating Disorder Criteria (p. 350) 
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 (w/in 2-hour 
period), an amount of food that is definitely larger 
than what most people would eat in a similar 
period of time under similar circumstances. 
1. A sense of lack of control over eating during the 
episode (e.g. feeling that one cannot stop eating 
or control what or how much one is eating).
Binge Eating Disorder Criteria (p. 350) 
B. The binge-eating episodes are associated with 
3/more of the following: 
1. Eating much more rapidly than normal. 
2. Eating until feeling uncomfortably full. 
3. Eating large amounts of food when not feeling 
physically hungry. 
4. Eating alone because of feeling embarrassed by 
how much one is eating. 
5. Feeling disgusted with oneself, depressed or very 
guilty afterward.
Binge Eating Disorder Criteria (p. 350) 
C. Marked distress regarding binge eating is 
present. 
D. The binge eating occurs, on average, at least 
once a week for 3 months. 
E. The binge eating is not associated with the 
recurrent use of inappropriate compensatory 
behavior as in bulimia nervosa and does not 
occur exclusively during the course of bulimia 
nervosa or anorexia nervosa.
Binge Eating Disorder Specifiers (p. 350) 
Partial/Full Remission After full criteria for 
BED were met, binge-eating disorder were 
previously met, 
Partial: Binge eating occurs at an average frequency of less 
than one episode per week for a sustained period of time. 
Full: none of the criteria have been met for a sustained 
period of time. 
Severity 
Mild: 1-3 episodes of binge eating each week 
Moderate: 4-7 episodes of binge eating each 
week 
Severe: 8-13 episodes of binge eating each week 
Extreme: 14/more episodes of binge eating each 
week
BED: Associated Features 
Prevalence: (p. 351) 
 12 month prevalence among adults: 
 Female: 1.6% 
 Males: .8% 
Development & Course : (p. 352) 
 Binge eating usually precedes BED whereas dieting usually 
precedes onset of binge eating in bulimia nervosa) 
 Treatment seeking BED clients are usually older than AN/BN 
treatment seeking clients 
 Course: persistent, similar to BN in severity & duration 
Risk and Prognostic Factors: Indication of 
Genetic predisposition
BED: Associated Features 
Culture-Related Diagnostic Issues 
 Similar across industrialized countries 
 Similar across ethnicities 
Functional Consequences 
 Social role adjustment problems 
 Impaired health-related quality of life & life satisfaction 
 Increased medical morbidity & mortality 
 Increased health care utilization compared with BMI-matched 
control subjects
BED: Associated Features 
Differential Diagnosis 
 Bulimia Nervosa: 
 BED doesn’t have recurrent compensatory (purge/exercise) behavior 
 BED consistently higher rates of improvement than BN 
 Obesity: 
 BED higher rates of overvaluation of body weight and shape 
 BED rates of psychiatric comorbidity are significantly higher 
 BED better outcomes 
 Bipolar & MDD can be given in addition to BED if meet full criteria for 
both 
 Borderline PD & BED can be given if meet full criteria for both 
Comorbidity *linked to severity of BED not degree of 
obesity* 
 Most common: bipolar, depressive, & anxiety disorders 
 Less common: substance use disorders
EDs: Anorexia Nervosa 
Several minor but important changes in criteria: 
 Criterion A DSM 5: 
 Focuses on behaviors indicating AN like restricting calorie intake 
 No longer includes the word “refusal” in terms of weight 
maintenance – implies intention – hard to assess 
 Elimination of Criterion D DSM IV TR: Amenorrhea 
required 
 Cannot be applied to males, premenstrual females, females taking 
oral contraceptives, and post-menopausal females 
 May have other AN criteria and still have some menstrual activity
Anorexia Nervosa 
37 
There are two main subtypes: 
 Restricting type 
 Lose weight by restricting “bad” foods, eventually restricting 
nearly all food 
 Show almost no variability in diet 
 Binge-eating/purging type 
 Lose weight by vomiting after meals, abusing laxatives or 
diuretics, or engaging in excessive exercise 
 Like those with bulimia nervosa, people with this subtype may 
engage in eating binges
Anorexia Nervosa 
38 
About 90%–95% of cases occur in females 
The peak age of onset is between 14 and 18 years 
Between 0.5% and 2% of females in Western 
countries develop the disorder 
 Many more display some symptoms 
Rates of anorexia nervosa are increasing in North 
America, Japan, and Europe
Anorexia Nervosa 
39 
The “typical” case: 
 A normal to slightly overweight female has been on a diet 
 Escalation to anorexia nervosa may follow a stressful 
event 
 Separation of parents 
 Move or life transition 
 Experience of personal failure 
 Most patients recover 
 However, about 2% to 6% become seriously ill and die as a result 
of medical complications or suicide
Anorexia Nervosa: The Clinical Picture 
40 
The key goal for people with anorexia nervosa is 
becoming thin 
 The driving motivation is fear: 
 Of becoming obese 
 Of giving in to the desire to eat 
 Of losing control of body shape and weight
Anorexia Nervosa: The Clinical Picture 
41 
Despite their dietary restrictions, people with 
anorexia are preoccupied with food 
 This includes thinking and reading about food and planning 
for meals 
 This preoccupation may be the result of food deprivation 
rather than its cause 
 Famous 1940s “starvation study” with conscientious objectors
Anorexia Nervosa: The Clinical Picture 
42 
People with anorexia nervosa also think in 
distorted ways: 
 Often have a low opinion of their body shape 
 Tend to overestimate their actual proportions 
 Adjustable lens assessment technique 
 Hold maladaptive attitudes and misperceptions 
 “I must be perfect in every way” 
 “I will be a better person if I deprive myself” 
 “I can avoid guilt by not eating”
Anorexia Nervosa: The Clinical Picture 
43 
People with anorexia may also display certain 
psychological problems: 
 Depression (usually mild) 
 Anxiety 
 Low self-esteem 
 Insomnia or other sleep disturbances 
 Substance abuse 
 Obsessive-compulsive patterns 
 Perfectionism
Anorexia Nervosa: Medical Problems 
44 
Caused by starvation: 
 Amenorrhea 
 Low body temperature 
 Low blood pressure 
 Body swelling 
 Reduced bone density 
 Slow heart rate 
 Metabolic and electrolyte 
imbalances 
 Dry skin, brittle nails 
 Poor circulation 
 Lanugo
EDs: Bulimia Nervosa 
Basically the same criteria EXCEPT 
Compensatory behaviors: 
DSM IV TR 2x/week 
DSM 5 1 time/week
Bulimia Nervosa 
46 
Bulimia nervosa, also known as “binge-purge 
syndrome,” is characterized by binges: 
 Bouts of uncontrolled overeating during a limited period 
 Eats more than most people would/could eat in a similar period
Bulimia Nervosa 
47 
The disorder is also characterized by compensatory 
behaviors, such as: 
 Vomiting 
 Misusing laxatives, diuretics, or enemas 
 Fasting 
 Exercising excessively
Bulimia Nervosa 
48 
Like anorexia nervosa, about 90%–95% of bulimia 
nervosa cases occur in females 
The peak age of onset is between 15 and 21 years 
Symptoms may last for several years with periodic 
letup
Bulimia Nervosa 
49 
Patients are generally of normal weight 
 Often experience weight fluctuations 
 Some may also qualify for a diagnosis of anorexia
50
Bulimia Nervosa 
51 
Teens and young adults have frequently attempted 
binge-purge patterns as a means of weight loss, 
often after hearing accounts of bulimia from 
friends or the media 
In one study: 
 50% of college students reported periodic binges 
 6% tried vomiting 
 8% experimented with laxatives at least once 
Surveys suggest that as many as 5% of women 
develop the full syndrome
Bulimia Nervosa: Binges 
52 
For people with bulimia nervosa, the number of 
binges per week can range from 2 to 40 
 Average: 10 per week 
Binges are often carried out in secret 
 Binges involve eating massive amounts of food rapidly 
with little chewing 
 Usually sweet foods with soft texture 
 Binge-eaters commonly consume more than 1000 
calories (often more than 3000 calories) per binge 
episode
Bulimia Nervosa: Binges 
53 
Binges are usually preceded by feelings of tension 
and/or powerlessness 
Although the binge itself may be pleasurable, it is 
usually followed by feelings of extreme self-blame, 
guilt, depression, and fears of weight gain and 
“discovery”
Bulimia Nervosa: 
Compensatory Behaviors 
54 
After a binge, people with bulimia nervosa try to 
compensate for and “undo” the caloric effects 
The most common compensatory behaviors: 
 Vomiting 
 Fails to prevent the absorption of half the calories consumed 
during a binge 
 Affects ability to feel satiated Þ greater hunger and bingeing 
 Laxatives and diuretics 
 Also almost completely fail to reduce the number of calories 
consumed
Bulimia Nervosa: Compensatory Behaviors 
55 
Compensatory behaviors may temporarily relieve the 
negative feelings attached to binge eating 
 Over time, however, a cycle develops in which purging Þ 
bingeing Þ purging
Bulimia Nervosa 
56 
The “typical” case: 
 A normal to slightly overweight female has been on an intense 
diet 
 Research suggests that even among normal subjects, bingeing 
often occurs after strict dieting 
 For example, a study of binge-eating behavior in a low-calorie 
weight loss program found that 62% of patients reported binge-eating 
episodes during treatment
Bulimia Nervosa vs. Anorexia Nervosa 
57 
Similarities: 
 Onset after a period of dieting 
 Fear of becoming obese 
 Drive to become thin 
 Preoccupation with food, weight, appearance 
 Elevated risk of self-harm or attempts at suicide 
 Feelings of anxiety, depression, perfectionism 
 Substance abuse 
 Disturbed attitudes toward eating
Bulimia Nervosa vs. Anorexia Nervosa 
58 
Differences: 
 People with bulimia are more worried about pleasing 
others, being attractive to others, and having intimate 
relationships 
 People with bulimia tend to be more sexually experienced 
 People with bulimia display fewer of the obsessive 
qualities that drive restricting-type anorexia 
 People with bulimia are more likely to have histories of 
mood swings, low frustration tolerance, and poor coping
Bulimia Nervosa vs. Anorexia Nervosa 
59 
Differences: 
 People with bulimia tend to be controlled by emotion – 
may change friendships easily 
 People with bulimia are more likely to display 
characteristics of a personality disorder 
 Different medical complications: 
 Only half of women with bulimia experience amenorrhea vs. 
almost all women with anorexia 
 People with bulimia suffer damage caused by purging, especially 
from vomiting and laxatives
Treatments for Eating Disorders 
60 
Eating disorder treatments have two main goals: 
 Correct abnormal eating patterns 
 Address broader psychological and situational factors that 
have led to and are maintaining the eating problem 
 This often requires the participation of family and friends
Treatments for Anorexia Nervosa 
61 
The initial aims of treatment for anorexia nervosa 
are to: 
 Restore proper weight 
 Recover from malnourishment 
 Restore proper eating
Treatments for Anorexia Nervosa 
62 
In the past, treatment took place in a hospital 
setting; it is now often offered in an outpatient 
setting 
In life-threatening cases, clinicians may need to 
force tube and intravenous feedings on the patient 
 This may breed distrust in the patient and create a power 
struggle 
Most common technique now is the use of 
supportive nursing care and high-calorie diets 
 Necessary weight gain is often achieved in 8 to 12 weeks
Treatments for Anorexia Nervosa 
63 
Researchers have found that people with anorexia 
must overcome their underlying psychological 
problems to achieve lasting improvement
Treatments for Anorexia Nervosa 
64 
Therapists use a mixture of therapy and education 
to achieve this broader goal, using a combination 
of individual, group, and family approaches 
 One focus of treatment is building autonomy and self-awareness 
 Therapists help patients recognize their need for independence 
and control 
 Therapists help patients recognize and trust their internal feelings
Treatments for Anorexia Nervosa 
65 
Another focus of treatment is correcting disturbed 
cognitions, especially client misperceptions and 
attitudes about eating and weight 
 Using cognitive approaches, therapists correct disturbed 
cognitions and educate about body distortions
Treatments for Anorexia Nervosa 
66 
Another focus of treatment is changing family 
interactions 
 Family therapy is important for anorexia 
 The main issue is often separation
Treatments for Anorexia Nervosa 
67 
The use of combined treatment approaches has 
greatly improved the outlook for people with 
anorexia nervosa 
 But even with combined treatment, recovery is difficult 
The course and outcome of the disorder vary from 
person to person
Treatments for Anorexia Nervosa 
68 
Positives of treatment: 
 Weight gain is often quickly restored 
 83% of patients still showed improvements 
after several years 
 Menstruation often returns with return to normal weight 
 The death rate from anorexia is declining
Treatments for Anorexia Nervosa 
69 
Negatives of treatment: 
 Close to 20% of patients remain troubled for years 
 Even when it occurs, recovery is not always permanent 
 Anorexic behaviors recur in at least one-third of recovered 
patients, usually triggered by stress 
 Many patients still express concerns about body shape and weight 
 Lingering emotional problems are common
Treatments for Bulimia Nervosa 
70 
Treatment is frequently offered in specialized eating 
disorder clinics
Treatments for Bulimia Nervosa 
71 
The initial aims of treatment for bulimia nervosa are 
to: 
 Eliminate binge-purge patterns 
 Establish good eating habits 
 Eliminate the underlying cause of bulimic patterns 
Programs emphasize education as much as therapy
Treatments for Bulimia Nervosa 
72 
Several treatment strategies: 
 Individual insight therapy 
 The insight approach receiving the most attention is cognitive 
therapy, which helps clients recognize and change their 
maladaptive attitudes toward food, eating, weight, and shape 
As many as 65% stop their binge-purge cycle
Treatments for Bulimia Nervosa 
73 
Several treatment strategies: 
 Individual insight therapy 
 If cognitive therapy isn’t effective, interpersonal therapy (IPT), a 
treatment that seeks to improve interpersonal functioning, may be 
tried 
 A number of clinicians also suggest self-help groups or self-care 
manuals
Treatments for Bulimia Nervosa 
74 
Several treatment strategies: 
 Behavioral therapy 
 Behavioral techniques are often included in treatment as a 
supplement to cognitive therapy 
Diaries are often a useful component of treatment 
 Exposure and response prevention (ERP) is used to break the 
binge-purge cycle
Treatments for Bulimia Nervosa 
75 
Several treatment strategies: 
 Antidepressant medications 
 During the past decade, antidepressant drugs have been used in 
bulimia treatment 
 Most common is fluoxetine (Prozac), an SSRI 
 Drugs help as many as 40% of patients 
 Medications are best when used in combination with other forms 
of therapy
Treatments for Bulimia Nervosa 
76 
Several treatment strategies: 
 Group therapy 
 Provides an opportunity for patients to express their thoughts, 
concerns, and experiences with one another 
 Helpful in as many as 75% of cases, especially when combined 
with individual insight therapy
Treatments for Bulimia Nervosa 
77 
Left untreated, bulimia can last for years 
Treatment provides immediate, significant 
improvement in about 40% of cases 
 An additional 40% show moderate improvement 
Follow-up studies suggest that 10 years after 
treatment about 90% of patients have fully or 
partially recovered
Treatments for Bulimia Nervosa 
78 
Relapse can be a significant problem, even among 
those who respond successfully to treatment 
 Relapses are usually triggered by stress 
 Relapses are more likely among persons who: 
 Had a longer history of symptoms 
 Vomited frequently 
 Had histories of substance use 
 Have lingering interpersonal problems
Treatments for Bulimia Nervosa 
79 
Finally, treatment may also help improve overall 
psychological and social functioning

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Eating Disorders

  • 1. LEIGH FALLS, PH.D., LPCS, RPTS, ACS, NCC 1 Eating Disorders
  • 2. Eating Disorders: How much is enough?
  • 3. Why is this so important? 3  81% of 10 year olds are afraid of being fat  51% of 9 & 10 year old girls feel better about themselves if they are on a diet  91% college women who had attempted to control their weight through dieting  22% dieted "often" or "always“  95% of all dieters will regain their lost weight in 1-5 years  55% of "normal dieters" progress to pathological dieting  35% of these progress to partial or full-syndrome eating disorders  Americans spend over $50 billion on dieting and products each year  58 million of the adult U.S. population are overweight or obese  up from 25% of American adults in 1980 to 33% today Adapted from: http://www.divorcedoc.com/psychotherapy/statistics.htm
  • 4. What Causes Eating Disorders? 4 Most theorists subscribe to a multidimensional risk perspective:  Several key factors place individuals at risk  More factors = greater risk  Leading factors:  Sociocultural conditions (societal and family pressures)  Psychological problems (ego, cognitive, and mood disturbances)  Biological factors
  • 5. Eating Disorders:Etiology 5 • Genetics – Relatives of patients with anorexia are eight times more likely to develop an eating disorder – Twin studies: • Monozygotic twins have a 58-76% concordance, while dizygotic twins with 35-45% concordance • Monozygotic twins have a 46%-56% concordance, while dizygotic twins with 18%-35% concordance for bulimia • Neurochemical – Serotonin precursor (5-HIAA) reduced in anorexia when ill and normalize upon recovery – Recovery from bulima associated with high levels of serotonin
  • 6. Eating Disorders:Etiology Psychosocial 6  Difficulty with transition to adulthood  Changes of body associated with puberty  Adult autonomy  Stressful times of transition  Family conflicts  Ineffective attempts to cope with stress
  • 7. What Causes Eating Disorders? Societal Pressures 7 Many theorists believe that current Western standards of female attractiveness have contributed to increases in eating disorders  Standards have changed throughout history toward a thinner ideal  Miss America contestants have declined in weight by 0.28 lbs/yr; winners have declined by 0.37 lbs/yr  Playboy centerfolds have lower average weight, bust, and hip measurements than in the past
  • 8. What Causes Eating Disorders? Societal Pressures 8 Certain groups are at greater risk from these pressures:  Models, actors, dancers, and certain athletes  Of college athletes surveyed, 9% met full criteria for an eating disorder while another 50% had symptoms  20% of surveyed gymnasts met full criteria for an eating disorder
  • 9. What Causes Eating Disorders? Societal Pressures 9 Societal attitudes may explain economic and racial differences seen in prevalence rates  In the past, white women of higher SES expressed more concern about thinness and dieting  These women had higher rates of eating disorders than African American women or white women of lower SES  Recently, dieting and preoccupation with food, along with rates of eating disorders, are increasing in all groups
  • 10. What Causes Eating Disorders? Societal Pressures 10 The socially accepted prejudice against overweight people may also add to the “fear” and preoccupation about weight  About 50% of elementary and 61% of middle school girls are currently dieting
  • 11. Eating Disorders: Sociocultural Factors 11 Changes in Body Image over Time
  • 12. Did you know that… 12 15% of young women in the United States (who are NOT diagnosed with an eating disorder), have disordered eating attitudes and behavior, according to the National Institute of Mental Health.
  • 13. Eating Disorders: Sociocultural Factors 13 • Anne Becker, Harvard researcher, studied the influence of American television on eating patterns in Fiji – Fiji had traditionally been a nation that has cherished the fuller figure • Since the arrival of TV to the island of Fiji in 1995, the percentage of eating disorders among young girls aged 15-19 years increased from 3% to 15% • The number of girls dieting (62 per cent) and girls feeling "too big or fat" (74 per cent) has also increased since 1995. • It is believed that the sudden infusion of Western cultural images and values through TV changed the way Fijian girls view themselves and their bodies
  • 14. What Causes Eating Disorders? Family Environment 14 Families may play an important role in the development of eating disorders  As many as half of the families of those with eating disorders have a long history of emphasizing thinness, appearance, and dieting  Mothers of those with eating disorders are more likely to be dieters and perfectionistic themselves
  • 15. What Causes Eating Disorders? Family Environment 15 Abnormal family interactions and forms of communication within a family may also set the stage for an eating disorder  Minuchin cites “enmeshed family patterns” as causal factors of eating disorders  These patterns include overinvolvement in, and overconcern about, family member’s lives
  • 16. What Causes Eating Disorders? Ego Deficiencies and Cognitive Disturbances 16 Bruch argues that eating disorders are the result of disturbed mother–child interactions, which lead to serious ego deficiencies in the child and to severe cognitive disturbances
  • 17. What Causes Eating Disorders? Ego Deficiencies and Cognitive Disturbances 17 According to Bruch, parents may respond to their children either effectively or ineffectively  Effective parents accurately attend to a child’s biological and emotional needs  Ineffective parents fail to attend to child’s internal needs; they feed when the child is anxious, comfort when the child is tired, etc. There is some empirical support for Bruch’s theory from clinical reports
  • 18. What Causes Eating Disorders? Mood Disorders 18 Many people with eating disorders, particularly those with bulimia nervosa, experience symptoms of depression  Theorists believe mood disorders may “set the stage” for eating disorders
  • 19. What Causes Eating Disorders? Mood Disorders 19 There is empirical support for the claim that mood disorders set the stage for eating disorders:  Many more people with an eating disorder qualify for a clinical diagnosis of major depressive disorder than do people in the general population  Close relatives of those with eating disorders seem to have higher rates of mood disorders  People with eating disorders, especially those with bulimia nervosa, have low levels of serotonin  Symptoms of eating disorders are helped by antidepressant medications
  • 20. What Causes Eating Disorders? BiologicalFactors 20 Biological theorists suspect certain genes may leave some people particularly susceptible to eating disorders  Consistent with this model:  Relatives of people with eating disorders are 6 times more likely to develop the disorder themselves  Identical (MZ) twins with bulimia: 23%  Fraternal (DZ) twins with bulimia: 9%  These findings may be related to low serotonin
  • 21. What Causes Eating Disorders? Biological Factors 21 Other theorists believe that eating disorders may be related to dysfunction of the hypothalamus  Researchers have identified two separate areas that control eating:  Lateral hypothalamus (LH)  Ventromedial hypothalamus (VMH)
  • 22. What Causes Eating Disorders? Biological Factors 22 Some theorists believe that the LH and VMH are responsible for weight set point – a “weight thermostat” of sorts  Set by genetic inheritance and early eating practices, this mechanism is responsible for keeping an individual at a particular weight level  If weight falls below set point: Ý hunger, ß metabolism Þ binges  If weight rises above set point: ß hunger, Ý metabolism  Dieters end up in a fight against themselves to lose weight
  • 23. Eating Disorders: Risk Factors 23 Activities with heightened weight/shape demands Childhood obesity Familial psychiatric history and/or obesity Diabetes Routine Dieting or restrained eating Premorbid personality disorder(s)
  • 24. Eating Disorders 24 Although not historically true, current Western beauty standards equate thinness with health and beauty  Thinness has become a national obsession! There has been a rise in eating disorders in the past three decades Two main diagnoses:  Anorexia nervosa  Bulimia nervosa
  • 25. Eating Disorders: DSM-5 Eating Disorders 25  Anorexia Nervosa  Bulimia Nervosa  Binge Eating Disorder DSM-5
  • 26. ED Changes from DSM IV TR- DSM 5 DSM IV TR Pica, Rumination, and Avoidant/Restrictive in chapter of disorders usually 1st diagnosed in infancy, childhood, or adolescence No Binge Eating Disorder DSM 5 Pica Rumination, & Avoidant/Restrictive in ED chapter Recognition of Binge Eating Disorder Anorexia Nervosa & Bulimia Nervosa criteria updated
  • 27. Eating Disorders Can only be diagnosed with one of the following at any given time:  Rumination Disorder  Avoidant/Restrictive Food Intake Disorder  Anorexia Nervosa  Bulimia Nervosa  Binge Eating Disorder
  • 28. EDs: (307.51/F50.8)Binge Eating Disorder (p. 380) DSM IV TR:  Appendix B: Criteria Sets and Axes Provided for Further Study  Diagnosed as ED NOS DSM 5:  Added BED to Feeding and Eating Disorders chapter  Recognition that a large percentage of ED NOS diagnoses could be attributed to BED  More severe and less common than overeating and associated with significant physical and psychological problems  Criteria A-E will must be met
  • 29. Binge Eating Disorder Criteria (p. 350) 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 (w/in 2-hour period), an amount of food that is definitely larger than what most people would eat in a similar period of time under similar circumstances. 1. A sense of lack of control over eating during the episode (e.g. feeling that one cannot stop eating or control what or how much one is eating).
  • 30. Binge Eating Disorder Criteria (p. 350) B. The binge-eating episodes are associated with 3/more of the following: 1. Eating much more rapidly than normal. 2. Eating until feeling uncomfortably full. 3. Eating large amounts of food when not feeling physically hungry. 4. Eating alone because of feeling embarrassed by how much one is eating. 5. Feeling disgusted with oneself, depressed or very guilty afterward.
  • 31. Binge Eating Disorder Criteria (p. 350) C. Marked distress regarding binge eating is present. D. The binge eating occurs, on average, at least once a week for 3 months. E. The binge eating is not associated with the recurrent use of inappropriate compensatory behavior as in bulimia nervosa and does not occur exclusively during the course of bulimia nervosa or anorexia nervosa.
  • 32. Binge Eating Disorder Specifiers (p. 350) Partial/Full Remission After full criteria for BED were met, binge-eating disorder were previously met, Partial: Binge eating occurs at an average frequency of less than one episode per week for a sustained period of time. Full: none of the criteria have been met for a sustained period of time. Severity Mild: 1-3 episodes of binge eating each week Moderate: 4-7 episodes of binge eating each week Severe: 8-13 episodes of binge eating each week Extreme: 14/more episodes of binge eating each week
  • 33. BED: Associated Features Prevalence: (p. 351)  12 month prevalence among adults:  Female: 1.6%  Males: .8% Development & Course : (p. 352)  Binge eating usually precedes BED whereas dieting usually precedes onset of binge eating in bulimia nervosa)  Treatment seeking BED clients are usually older than AN/BN treatment seeking clients  Course: persistent, similar to BN in severity & duration Risk and Prognostic Factors: Indication of Genetic predisposition
  • 34. BED: Associated Features Culture-Related Diagnostic Issues  Similar across industrialized countries  Similar across ethnicities Functional Consequences  Social role adjustment problems  Impaired health-related quality of life & life satisfaction  Increased medical morbidity & mortality  Increased health care utilization compared with BMI-matched control subjects
  • 35. BED: Associated Features Differential Diagnosis  Bulimia Nervosa:  BED doesn’t have recurrent compensatory (purge/exercise) behavior  BED consistently higher rates of improvement than BN  Obesity:  BED higher rates of overvaluation of body weight and shape  BED rates of psychiatric comorbidity are significantly higher  BED better outcomes  Bipolar & MDD can be given in addition to BED if meet full criteria for both  Borderline PD & BED can be given if meet full criteria for both Comorbidity *linked to severity of BED not degree of obesity*  Most common: bipolar, depressive, & anxiety disorders  Less common: substance use disorders
  • 36. EDs: Anorexia Nervosa Several minor but important changes in criteria:  Criterion A DSM 5:  Focuses on behaviors indicating AN like restricting calorie intake  No longer includes the word “refusal” in terms of weight maintenance – implies intention – hard to assess  Elimination of Criterion D DSM IV TR: Amenorrhea required  Cannot be applied to males, premenstrual females, females taking oral contraceptives, and post-menopausal females  May have other AN criteria and still have some menstrual activity
  • 37. Anorexia Nervosa 37 There are two main subtypes:  Restricting type  Lose weight by restricting “bad” foods, eventually restricting nearly all food  Show almost no variability in diet  Binge-eating/purging type  Lose weight by vomiting after meals, abusing laxatives or diuretics, or engaging in excessive exercise  Like those with bulimia nervosa, people with this subtype may engage in eating binges
  • 38. Anorexia Nervosa 38 About 90%–95% of cases occur in females The peak age of onset is between 14 and 18 years Between 0.5% and 2% of females in Western countries develop the disorder  Many more display some symptoms Rates of anorexia nervosa are increasing in North America, Japan, and Europe
  • 39. Anorexia Nervosa 39 The “typical” case:  A normal to slightly overweight female has been on a diet  Escalation to anorexia nervosa may follow a stressful event  Separation of parents  Move or life transition  Experience of personal failure  Most patients recover  However, about 2% to 6% become seriously ill and die as a result of medical complications or suicide
  • 40. Anorexia Nervosa: The Clinical Picture 40 The key goal for people with anorexia nervosa is becoming thin  The driving motivation is fear:  Of becoming obese  Of giving in to the desire to eat  Of losing control of body shape and weight
  • 41. Anorexia Nervosa: The Clinical Picture 41 Despite their dietary restrictions, people with anorexia are preoccupied with food  This includes thinking and reading about food and planning for meals  This preoccupation may be the result of food deprivation rather than its cause  Famous 1940s “starvation study” with conscientious objectors
  • 42. Anorexia Nervosa: The Clinical Picture 42 People with anorexia nervosa also think in distorted ways:  Often have a low opinion of their body shape  Tend to overestimate their actual proportions  Adjustable lens assessment technique  Hold maladaptive attitudes and misperceptions  “I must be perfect in every way”  “I will be a better person if I deprive myself”  “I can avoid guilt by not eating”
  • 43. Anorexia Nervosa: The Clinical Picture 43 People with anorexia may also display certain psychological problems:  Depression (usually mild)  Anxiety  Low self-esteem  Insomnia or other sleep disturbances  Substance abuse  Obsessive-compulsive patterns  Perfectionism
  • 44. Anorexia Nervosa: Medical Problems 44 Caused by starvation:  Amenorrhea  Low body temperature  Low blood pressure  Body swelling  Reduced bone density  Slow heart rate  Metabolic and electrolyte imbalances  Dry skin, brittle nails  Poor circulation  Lanugo
  • 45. EDs: Bulimia Nervosa Basically the same criteria EXCEPT Compensatory behaviors: DSM IV TR 2x/week DSM 5 1 time/week
  • 46. Bulimia Nervosa 46 Bulimia nervosa, also known as “binge-purge syndrome,” is characterized by binges:  Bouts of uncontrolled overeating during a limited period  Eats more than most people would/could eat in a similar period
  • 47. Bulimia Nervosa 47 The disorder is also characterized by compensatory behaviors, such as:  Vomiting  Misusing laxatives, diuretics, or enemas  Fasting  Exercising excessively
  • 48. Bulimia Nervosa 48 Like anorexia nervosa, about 90%–95% of bulimia nervosa cases occur in females The peak age of onset is between 15 and 21 years Symptoms may last for several years with periodic letup
  • 49. Bulimia Nervosa 49 Patients are generally of normal weight  Often experience weight fluctuations  Some may also qualify for a diagnosis of anorexia
  • 50. 50
  • 51. Bulimia Nervosa 51 Teens and young adults have frequently attempted binge-purge patterns as a means of weight loss, often after hearing accounts of bulimia from friends or the media In one study:  50% of college students reported periodic binges  6% tried vomiting  8% experimented with laxatives at least once Surveys suggest that as many as 5% of women develop the full syndrome
  • 52. Bulimia Nervosa: Binges 52 For people with bulimia nervosa, the number of binges per week can range from 2 to 40  Average: 10 per week Binges are often carried out in secret  Binges involve eating massive amounts of food rapidly with little chewing  Usually sweet foods with soft texture  Binge-eaters commonly consume more than 1000 calories (often more than 3000 calories) per binge episode
  • 53. Bulimia Nervosa: Binges 53 Binges are usually preceded by feelings of tension and/or powerlessness Although the binge itself may be pleasurable, it is usually followed by feelings of extreme self-blame, guilt, depression, and fears of weight gain and “discovery”
  • 54. Bulimia Nervosa: Compensatory Behaviors 54 After a binge, people with bulimia nervosa try to compensate for and “undo” the caloric effects The most common compensatory behaviors:  Vomiting  Fails to prevent the absorption of half the calories consumed during a binge  Affects ability to feel satiated Þ greater hunger and bingeing  Laxatives and diuretics  Also almost completely fail to reduce the number of calories consumed
  • 55. Bulimia Nervosa: Compensatory Behaviors 55 Compensatory behaviors may temporarily relieve the negative feelings attached to binge eating  Over time, however, a cycle develops in which purging Þ bingeing Þ purging
  • 56. Bulimia Nervosa 56 The “typical” case:  A normal to slightly overweight female has been on an intense diet  Research suggests that even among normal subjects, bingeing often occurs after strict dieting  For example, a study of binge-eating behavior in a low-calorie weight loss program found that 62% of patients reported binge-eating episodes during treatment
  • 57. Bulimia Nervosa vs. Anorexia Nervosa 57 Similarities:  Onset after a period of dieting  Fear of becoming obese  Drive to become thin  Preoccupation with food, weight, appearance  Elevated risk of self-harm or attempts at suicide  Feelings of anxiety, depression, perfectionism  Substance abuse  Disturbed attitudes toward eating
  • 58. Bulimia Nervosa vs. Anorexia Nervosa 58 Differences:  People with bulimia are more worried about pleasing others, being attractive to others, and having intimate relationships  People with bulimia tend to be more sexually experienced  People with bulimia display fewer of the obsessive qualities that drive restricting-type anorexia  People with bulimia are more likely to have histories of mood swings, low frustration tolerance, and poor coping
  • 59. Bulimia Nervosa vs. Anorexia Nervosa 59 Differences:  People with bulimia tend to be controlled by emotion – may change friendships easily  People with bulimia are more likely to display characteristics of a personality disorder  Different medical complications:  Only half of women with bulimia experience amenorrhea vs. almost all women with anorexia  People with bulimia suffer damage caused by purging, especially from vomiting and laxatives
  • 60. Treatments for Eating Disorders 60 Eating disorder treatments have two main goals:  Correct abnormal eating patterns  Address broader psychological and situational factors that have led to and are maintaining the eating problem  This often requires the participation of family and friends
  • 61. Treatments for Anorexia Nervosa 61 The initial aims of treatment for anorexia nervosa are to:  Restore proper weight  Recover from malnourishment  Restore proper eating
  • 62. Treatments for Anorexia Nervosa 62 In the past, treatment took place in a hospital setting; it is now often offered in an outpatient setting In life-threatening cases, clinicians may need to force tube and intravenous feedings on the patient  This may breed distrust in the patient and create a power struggle Most common technique now is the use of supportive nursing care and high-calorie diets  Necessary weight gain is often achieved in 8 to 12 weeks
  • 63. Treatments for Anorexia Nervosa 63 Researchers have found that people with anorexia must overcome their underlying psychological problems to achieve lasting improvement
  • 64. Treatments for Anorexia Nervosa 64 Therapists use a mixture of therapy and education to achieve this broader goal, using a combination of individual, group, and family approaches  One focus of treatment is building autonomy and self-awareness  Therapists help patients recognize their need for independence and control  Therapists help patients recognize and trust their internal feelings
  • 65. Treatments for Anorexia Nervosa 65 Another focus of treatment is correcting disturbed cognitions, especially client misperceptions and attitudes about eating and weight  Using cognitive approaches, therapists correct disturbed cognitions and educate about body distortions
  • 66. Treatments for Anorexia Nervosa 66 Another focus of treatment is changing family interactions  Family therapy is important for anorexia  The main issue is often separation
  • 67. Treatments for Anorexia Nervosa 67 The use of combined treatment approaches has greatly improved the outlook for people with anorexia nervosa  But even with combined treatment, recovery is difficult The course and outcome of the disorder vary from person to person
  • 68. Treatments for Anorexia Nervosa 68 Positives of treatment:  Weight gain is often quickly restored  83% of patients still showed improvements after several years  Menstruation often returns with return to normal weight  The death rate from anorexia is declining
  • 69. Treatments for Anorexia Nervosa 69 Negatives of treatment:  Close to 20% of patients remain troubled for years  Even when it occurs, recovery is not always permanent  Anorexic behaviors recur in at least one-third of recovered patients, usually triggered by stress  Many patients still express concerns about body shape and weight  Lingering emotional problems are common
  • 70. Treatments for Bulimia Nervosa 70 Treatment is frequently offered in specialized eating disorder clinics
  • 71. Treatments for Bulimia Nervosa 71 The initial aims of treatment for bulimia nervosa are to:  Eliminate binge-purge patterns  Establish good eating habits  Eliminate the underlying cause of bulimic patterns Programs emphasize education as much as therapy
  • 72. Treatments for Bulimia Nervosa 72 Several treatment strategies:  Individual insight therapy  The insight approach receiving the most attention is cognitive therapy, which helps clients recognize and change their maladaptive attitudes toward food, eating, weight, and shape As many as 65% stop their binge-purge cycle
  • 73. Treatments for Bulimia Nervosa 73 Several treatment strategies:  Individual insight therapy  If cognitive therapy isn’t effective, interpersonal therapy (IPT), a treatment that seeks to improve interpersonal functioning, may be tried  A number of clinicians also suggest self-help groups or self-care manuals
  • 74. Treatments for Bulimia Nervosa 74 Several treatment strategies:  Behavioral therapy  Behavioral techniques are often included in treatment as a supplement to cognitive therapy Diaries are often a useful component of treatment  Exposure and response prevention (ERP) is used to break the binge-purge cycle
  • 75. Treatments for Bulimia Nervosa 75 Several treatment strategies:  Antidepressant medications  During the past decade, antidepressant drugs have been used in bulimia treatment  Most common is fluoxetine (Prozac), an SSRI  Drugs help as many as 40% of patients  Medications are best when used in combination with other forms of therapy
  • 76. Treatments for Bulimia Nervosa 76 Several treatment strategies:  Group therapy  Provides an opportunity for patients to express their thoughts, concerns, and experiences with one another  Helpful in as many as 75% of cases, especially when combined with individual insight therapy
  • 77. Treatments for Bulimia Nervosa 77 Left untreated, bulimia can last for years Treatment provides immediate, significant improvement in about 40% of cases  An additional 40% show moderate improvement Follow-up studies suggest that 10 years after treatment about 90% of patients have fully or partially recovered
  • 78. Treatments for Bulimia Nervosa 78 Relapse can be a significant problem, even among those who respond successfully to treatment  Relapses are usually triggered by stress  Relapses are more likely among persons who:  Had a longer history of symptoms  Vomited frequently  Had histories of substance use  Have lingering interpersonal problems
  • 79. Treatments for Bulimia Nervosa 79 Finally, treatment may also help improve overall psychological and social functioning

Notas del editor

  1. Pica, Rumination & Avoidant/Restrictive moved to ED. Binge ED Recognized – reduce ED NOS “In recent years, clinicians and researchers have realized that a significant number of individuals with eating disorders did not fit into the DSM-IV categories of anorexia nervosa and bulimia nervosa. By default, many received a diagnosis of “eating disorder not otherwise specified.” Studies have suggested that a significant portion of individuals in that “not otherwise specified” category may actually have binge eating disorder” (APA Fact Sheet on Feeding and Eating Disorders). AN and BN criteria updated.
  2. Mutually exclusive diagnostic criteria exist for disorders having similar features they differ significantly in other areas (pg. 329): Rumination disorder Avoidant/restirctive food intake disorder Anorexia Nervosa Bulimia Nervosa Binge-Eating Disorder
  3. We will go review the specific criteria for Binge Eating Disorder on the following slides. Associated Features: (351) Normal and overweight and obese individuals Distinct from obesity. Most obese individuals do not engage in recurrent binge eating. “Obese individuals with BED consume more calories in lab studies of eating behavior and have greater functional impairment, lower quality of life, more subjective distress, and greater psychiatric comorbidity than obese individuals without BED” (p. 351).
  4. Diagnostic Features (p. 351) “The context in which the eating occurs may affect the clinician’s estimation of whether the intake is excessive. For example, a quantity of food that might be regarded as excessive during a typical meal might be considered normal during a celebration or holiday meal.” Discrete Period of Time: usually less than 2 hours Single episode: may not be restricted to one setting (i.e. restaurant & home but not continual snacking on small amounts of food throughout the day.) Sense of lack of Control: ”inability to refrain from eating or to stop eating once started.” Dissociative quality during or following May be able to stop if someone enters the room unexpectedly May be described as acute loss of control or general pattern of uncontrolled eating Binges can be planned Or May have stopped trying to control eating
  5. Diagnostic Features: “Binge eating seems to be characterized more by an abnormality in the amount of food consumed than by a craving for a specific nutrient” (p. 351). Typically ashamed of their eating problems Secrecy: Attempt to conceal their symptoms Triggers: Negative affect (emotion regulation) Interpersonal stressors Dietary restraint Negative feelings related to body weight, body shape, and food Boredom “Binge eating may be minimized or mitigate factors that precipitated the episode in the short-term” (it works initially) “but negative self-evaluation and dysphoria often are delayed consequences” (indicates a addictive/relapse cycle)
  6. Prevalence: 12 month prevalence among 18yo/older: Female: 1.6% Males: .8% Less skewed in BED than bulimia nervosa As frequent among racial/ethnic minorities as white women More prevalent among those seeking weight-loss treatment than general population Development: not much known about development of BED Associated with increased body fat, weight gain, and increases in psychological symptoms Common in adolescent and college-age samples Loss of control eating or episodic binge eating may represent a prodromal phase of eating disorders for some individuals. Binge eating usually precedes BED whereas dieting usually precedes onset of binge eating in bulimia nervosa) Usually begins in adolescence or young adulthood, but can begin in later adulthood. Course: Remission rates in both natural course and treatment outcome studies are higher for binge-eating disorder than for bulimia nervosa or anorexia nervosa. Relatively persistent, course is comparable to BN in terms of severity and duration Crossover from BED to AN/BN is uncommon
  7. Risk & Prognostic Factors: “BED appears to run in families, which may reflect additive genetic influences” (p. 352). Culture-Related Diagnostic Issues: Prevalence of BED similar across industrialized countries and among Latinos, Asians, Caucasians, and African Americans. Functional Consequences of BED: Associated with Social role adjustment problems Impaired health-related quality of life and life satisfaction Increased medical morbidity and mortality Associated increased health care utilization compared with BMI-matched control subjects May be associated with an increased risk for weight gain & devmt of obesity
  8. Differential Diagnosis: Bulimia Nervosa: Clinical presentation & recurrent inappropriate compensatory behavior (e.g., purging, driven exercise) – not in BED BED may report dieting attempts, but “don’t show marked or sustained dietary restriction designed to influence body weight & shape between binge-eating episodes” (352) Response to treatment: BED consistently higher rates of improvement than BN Obesity: Associated with obesity but different. BED clients with obesity have higher rates of overvaluation of body weight and shape BED rates of psychiatric comorbidity are significantly higher BED better treatment outcomes than obesity without BED Bipolar & Depressive Disorders: Increased eating in the context of major depressive episode may/may not be associated with loss of control. If full criteria are met for MDD/Bipolar Disorder and BED, then they can both be given. Borderline PD: “If full criteria for both disorders are met, both diagnoses should be given” (353). Comorbidity: Most common are bipolar disorders, depressive disorders, anxiety disorders Less common substance use disorders “Psychiatric comorbidity is linked to the severity of binge eating and not to the degree of obesity” (353).
  9. Several minor but important changes in criteria Criterion A focuses on behaviors, like restricting calorie intake, and no longer includes the word “refusal” in terms of weight maintenance since that implies intention on the part of the patient and can be difficult to assess. DSM IV TR Criterion D requiring Amenorrhea, or the absence of at least 3 menstrual cycles, was deleted in DSM 5 because it cannot be applied to males, pre-menstrual females, females taking oral contraceptives, and post-menopausal females.
  10. DSM-5 criteria reduce the frequency of binge eating and compensatory behaviors that people with bulimia nervosa must exhibit to once a week from twice weekly as specified in the DSM IV TR.