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Differential comorbidity profiles in avoidant/restrictive food intake disorder and anorexia nervosa: Does age play a role?

Kambanis, P Evelyna; Harshman, Stephanie G; Kuhnle, Megan C; Kahn, Danielle L; Dreier, Melissa J; Hauser, Kristine; Slattery, Meghan; ... Thomas, Jennifer J; + view all (2022) Differential comorbidity profiles in avoidant/restrictive food intake disorder and anorexia nervosa: Does age play a role? International Journal of Eating Disorders , 55 (10) pp. 1397-1403. 10.1002/eat.23777. Green open access

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Abstract

Objective: Research comparing psychiatric comorbidities between individuals with avoidant/restrictive food intake disorder (ARFID) and anorexia nervosa (AN) is limited. ARFID often develops in childhood, whereas AN typically develops in adolescence or young adulthood. Understanding how age may impact differential psychological comorbidity profiles is important to inform etiological conceptualization, differential diagnosis, and treatment planning. We aimed to compare the lifetime frequency of psychiatric comorbidities and suicidality between females with ARFID (n = 51) and AN (n = 40), investigating the role of age as a covariate. Method: We used structured interviews to assess the comparative frequency of psychiatric comorbidities/suicidality. Results: When age was omitted from analyses, females with ARFID had a lower frequency of depressive disorders and suicidality compared to AN. Adjusting for age, only suicidality differed between groups. Discussion: This is the first study to compare comorbidities in a similar number of individuals with ARFID and AN, and a structured clinical interview to confer ARFID and comorbidities, covarying for age, and the first to compare suicidality. Although suicidality is at least three times less common in ARFID than AN, observed differences in other psychiatric comorbidities may reflect ARFID's relatively younger age of presentation compared to AN. Public Significance: Our results highlight that, with the exception of suicidality, which was three times less common in ARFID than AN irrespective of age, observed differences in psychiatric comorbidities in clinical practice may reflect ARFID's younger age at clinical presentation compared to AN.

Type: Article
Title: Differential comorbidity profiles in avoidant/restrictive food intake disorder and anorexia nervosa: Does age play a role?
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/eat.23777
Publisher version: http://dx.doi.org/10.1002/eat.23777
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: anorexia nervosa anxiety, obsessive–compulsive, and trauma-related disorders avoidant/restrictive food intake disorder depressive and bipolar-related disorders feeding and eating disorders neurodevelopmental, disruptive, and conduct disorders psychiatric comorbidities structured clinical interview suicidality
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Population, Policy and Practice Dept
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10187215
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