Eating Disorders and DSM-5 Diagnoses

This set of flashcards covers key concepts related to eating disorders as defined in the DSM-5, including types of disorders, epidemiology, onset, and risk factors.

Anorexia Nervosa (ANS)

Characterized by energy restriction leading to low body weight, fear of gaining weight, or distorted body image.

Types of Anorexia Nervosa

Restricting type and Binge/Purge type.

Bulimia Nervosa (BN)

Involves binge eating followed by compensatory behaviors such as vomiting, fasting, or exercise; individuals may be of normal or above normal weight.

Binge Eating Disorder (BED)

Characterized by episodes of binge eating without purging, often resulting in obesity.

Avoidant/Restrictive Food Intake Disorder (ARFID)

Food avoidance due to sensory or fear-based reasons, rather than body image issues.

Epidemiology of Anorexia Nervosa

Affects approximately 0.5% of the population.

Epidemiology of Bulimia Nervosa

Affects about 1-2% of the population.

Epidemiology of Binge Eating Disorder

Affects approximately 3-4% of the population; 10x more common in females.

Onset of Eating Disorders

Typically occurs during the teenage years to early adulthood.

Risk Factors for Eating Disorders

Includes cultural emphasis on thinness, family dysfunction, perfectionism, and potential genetic and serotonin dysregulation.