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Psychiatric and medical comorbidities of eating disorders: findings from a rapid review of the literature
journal contributionposted on 2023-02-09, 01:14 authored by Ashlea Hambleton, Genevieve Pepin, Anvi Le, Danielle Maloney, Stephen Touyz, Sarah Maguire
Abstract Background Eating disorders (EDs) are potentially severe, complex, and life-threatening illnesses. The mortality rate of EDs is significantly elevated compared to other psychiatric conditions, primarily due to medical complications and suicide. The current rapid review aimed to summarise the literature and identify gaps in knowledge relating to any psychiatric and medical comorbidities of eating disorders. Methods This paper forms part of a rapid review) series scoping the evidence base for the field of EDs, conducted to inform the Australian National Eating Disorders Research and Translation Strategy 2021–2031, funded and released by the Australian Government. ScienceDirect, PubMed and Ovid/Medline were searched for English-language studies focused on the psychiatric and medical comorbidities of EDs, published between 2009 and 2021. High-level evidence such as meta-analyses, large population studies and Randomised Control Trials were prioritised. Results A total of 202 studies were included in this review, with 58% pertaining to psychiatric comorbidities and 42% to medical comorbidities. For EDs in general, the most prevalent psychiatric comorbidities were anxiety (up to 62%), mood (up to 54%) and substance use and post-traumatic stress disorders (similar comorbidity rates up to 27%). The review also noted associations between specific EDs and non-suicidal self-injury, personality disorders, and neurodevelopmental disorders. EDs were complicated by medical comorbidities across the neuroendocrine, skeletal, nutritional, gastrointestinal, dental, and reproductive systems. Medical comorbidities can precede, occur alongside or emerge as a complication of the ED. Conclusions This review provides a thorough overview of the comorbid psychiatric and medical conditions co-occurring with EDs. High psychiatric and medical comorbidity rates were observed in people with EDs, with comorbidities contributing to increased ED symptom severity, maintenance of some ED behaviours, and poorer functioning as well as treatment outcomes. Early identification and management of psychiatric and medical comorbidities in people with an ED may improve response to treatment and overall outcomes.
JournalJOURNAL OF EATING DISORDERS
Article numberARTN 132
Social SciencesScience & TechnologyLife Sciences & BiomedicinePsychology, ClinicalNutrition & DieteticsPsychiatryPsychologyPsychiatricMedicalComorbiditiesEating disordersBONE-MINERAL DENSITYNONSUICIDAL SELF-INJURYSUBSTANCE USE DISORDERSANOREXIA-NERVOSABULIMIA-NERVOSAHOSPITALIZED ADOLESCENTSSUICIDAL-BEHAVIORBIPOLAR DISORDERINPATIENT TREATMENTDEPRESSIVE SYMPTOMSNational Eating Disorder Research ConsortiumMental HealthNutritionBrain DisordersBehavioral and Social ScienceEating DisordersMental healthNutrition and Dietetics not elsewhere classifiedPsychology not elsewhere classified