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. 2024 Mar;32(2):188-200.
doi: 10.1002/erv.3035. Epub 2023 Oct 3.

Associations between major depressive and bipolar disorders and eating disorder, PTSD, and comorbid symptom severity in eating disorder patients

Timothy D Brewerton  1   2   3 , Ismael Gavidia  3 , Giulia Suro  3 , Molly M Perlman  3   4
Affiliations

Associations between major depressive and bipolar disorders and eating disorder, PTSD, and comorbid symptom severity in eating disorder patients

Timothy D Brewerton et al. Eur Eat Disord Rev. 2024 Mar.

Abstract

Objective: Major depressive disorder (MDD) and bipolar disorder (BD) are commonly comorbid with eating disorders (EDs). However, there is limited data about the clinical features of such patients, especially their association with traumatic histories and PTSD, which occur commonly in patients admitted to residential treatment.

Methods: Adults (≥18 years, 91% female, n = 2155) admitted to residential ED treatment were evaluated upon admission for DSM-5 defined MDD and BD. Patients were divided into three groups based on an admission diagnosis of no mood disorder (NMD), MDD, and BD (types I and II) and compared on a number of demographic variables, clinical features and assessments.

Results: Mood disorders occurred in 76.4% of participants. There were statistically significant differences across groups in most measures with the BD group showing higher rates and doses of traumatic events; higher current PTSD; higher BMIs; higher severity of ED, depression and state-trait anxiety symptoms; worse quality of life; and higher rates of substance use disorders. Similarly, the MDD group had higher rates than the NMD group on most measures.

Conclusions: These findings have important implications for prevention, treatment and long-term follow-up and highlight the need for early trauma-focused treatment of ED patients with comorbid mood disorders and PTSD.

Keywords: PTSD; bipolar disorder; comorbidity; eating disorders; major depressive disorder; mood disorders; residential treatment; severity.

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