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date: 04 March 2021

Abstract and Keywords

Psychological comorbidity of eating disorders may be conceptualized in varying facets including psychiatric diagnosis, specific behaviors, traits, affect regulation, and cognitive characteristics. Although the Diagnostic and Statistical Manual, fifth edition (DSM-5) modified some criteria for psychiatric diagnoses, these modifications should have little effect over the previous rates of DSM-IV comorbidities and thus do not necessitate repeat large sample comorbidity studies. This chapter presents facets of psychological comorbidities of the three major eating disorders: anorexia nervosa (AN), bulimia nervosa (BN), and binge eating disorder (BED). The most comprehensive comorbid psychiatric diagnosis study from the US national comorbidity survey replication revealed at least one lifetime comorbid psychiatric DSM-IV disorder was present in 56.2% AN, 94.5% BN, and 78.9% BED. Affect regulation, negative affect, perfectionism, cognitive-behavioral flexibility, and impulse control are common comorbid features present in these disorders.

Keywords: comorbidity, affective, disorder, anxiety, impulse control, personality, substance use, personality trait, affect regulation, cognitive process

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