Children with avoidant/restrictive food intake disorder and anorexia nervosa in a tertiary care pediatric eating disorder program: A comparative study

Abstract

OBJECTIVE: The purpose of this study was to examine the medical and psychological characteristics of children under the age of 13 years with avoidant restrictive food intake disorder (ARFID) and anorexia nervosa (AN) from a Canadian tertiary care pediatric eating disorders program. METHOD: Participants included 106 children assessed between 2013 and 2017 using the Diagnostic and Statistical Manual for Mental Disorders, 5th edition (DSM-5). Data were collected through clinical interviews, psychometric questionnaires, and chart review. Information collected included medical variables (e.g., weight, heart rate, need for inpatient admission, and duration of illness from symptom onset); medical comorbidities (e.g., history of food allergies, infection, and abdominal pain preceding the eating disorder); and psychological variables (e.g., psychiatric comorbidity, self-reported depression and anxiety, and eating disorder related behaviors and cognitions). RESULTS: Children with ARFID had a longer length of illness, while those with AN had lower heart rates and were more likely to be admitted as inpatients. Children with ARFID had a history of abdominal pain and infections preceding their diagnoses and were more likely to be diagnosed with a comorbid anxiety disorder. Children with AN had a higher drive for thinness, lower self-esteem, and scored higher on depression. DISCUSSION: This is the first study to look at DSM-5 diagnosis at assessment and include psychometric and interview data with younger children with AN and ARFID. Understanding the medical and psychological profiles of children with AN and ARFID can result in a more timely and accurate diagnosis of eating disorders in younger children.

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