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McAulay C, Mond J, Outhred T, Malhi GS, Touyz S. Eating disorder features in bipolar disorder: clinical implications. J Ment Health 2023; 32:43-53. [PMID: 33573438 DOI: 10.1080/09638237.2021.1875401] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Bipolar disorder (BD) is associated with elevated rates of eating disorders (EDs), but the nature and impact of specific ED features are unclear. AIMS This study sought to identify which ED features are common in BD, and whether these relate to quality of life (QoL) impairment and body mass index (BMI). METHOD A clinical sample of 73 adults with BD completed self-report measures of health, ED features, emotion regulation ability, impulsivity, and QoL. RESULTS Binge eating (45%), excessive dietary restriction (39%), overvaluation of weight/shape (51%), purging (16%) and driven exercise (27%) were common, and associated with a poorer clinical picture, including poorer QoL and poorer emotion regulation. Furthermore, regular binge eating episodes explained a significant proportion of variance in QoL impairment after controlling for other significant predictors. The best predictors of BMI were number of medical conditions, impulsivity and positive beliefs about binge eating. CONCLUSIONS ED features that may not meet criteria for a fully diagnosable ED - particularly overvaluation of weight/shape and binge eating - warrant greater attention, as they may still significantly worsen QoL. Future research should focus on modifying existing psychological interventions to better target ED features among individuals with BD and thereby improve clinical outcomes.
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Affiliation(s)
- Claire McAulay
- Clinical Psychology Unit, University of Sydney, Sydney, Australia
| | - Jonathan Mond
- Centre for Rural Health, University of Tasmania, Launceston, Australia
| | - Tim Outhred
- Academic Department of Psychiatry, Northern Sydney Local Health District, Sydney, Australia.,Department of Psychiatry, Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia.,CADE Clinic, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, Australia
| | - Gin S Malhi
- Academic Department of Psychiatry, Northern Sydney Local Health District, Sydney, Australia.,Department of Psychiatry, Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia.,CADE Clinic, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, Australia
| | - Stephen Touyz
- Clinical Psychology Unit, University of Sydney, Sydney, Australia
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Eating Habits and Eating Disorder Associated Behavior in Bipolar Disorder. J Nerv Ment Dis 2022; 210:930-934. [PMID: 36200849 DOI: 10.1097/nmd.0000000000001568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A relevant comorbidity of bipolar disorder (BD) is eating disorders (EDs). Crossed vulnerability factors as eating disorder-specific symptoms (EDSSs) may trigger the onset of both disorders in either direction. The Structured Inventory for Anorexic and Bulimic Eating Disorders for Self-Report was used to examine the occurrence of EDs in euthymic/subsyndromal individuals with BD ( n = 86) and healthy controls ( n = 86) matched for age and sex. Furthermore, we explored EDSSs with the subscales "general psychopathology and social integration," "bulimic symptoms," "body image and slimness ideal," "sexuality and body weight," "counteract," and "atypical binge." Higher rates of all EDSSs were reported in BD. Younger individuals with BD showed higher expression in "bulimic symptoms," "body image and slimness ideal," and "atypical binge" subscales. No participants fulfilled ED diagnosis. The findings show a link between EDSS and BD. Clinicians should pay attention to a multimodal intervention, considering risk factors, investigating eating habits and ED associated behaviors.
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Hambleton A, Pepin G, Le A, Maloney D, Touyz S, Maguire S. Psychiatric and medical comorbidities of eating disorders: findings from a rapid review of the literature. J Eat Disord 2022; 10:132. [PMID: 36064606 PMCID: PMC9442924 DOI: 10.1186/s40337-022-00654-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022] Open
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.
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Affiliation(s)
- Ashlea Hambleton
- InsideOut Institute, Central Clinical School, Faculty of Medicine and Health, Charles Perkins Centre (D17), University of Sydney, Camperdown, NSW, 2006, Australia.
| | - Genevieve Pepin
- School of Health and Social Development, Faculty of Health, Deakin University, Geelong, VIC, 3220, Australia
| | - Anvi Le
- Healthcare Management Advisors, Melbourne, VIC, Australia
| | - Danielle Maloney
- InsideOut Institute, Central Clinical School, Faculty of Medicine and Health, Charles Perkins Centre (D17), University of Sydney, Camperdown, NSW, 2006, Australia.,Sydney Local Health District, Camperdown, NSW, Australia
| | | | - Stephen Touyz
- InsideOut Institute, Central Clinical School, Faculty of Medicine and Health, Charles Perkins Centre (D17), University of Sydney, Camperdown, NSW, 2006, Australia.,Sydney Local Health District, Camperdown, NSW, Australia
| | - Sarah Maguire
- InsideOut Institute, Central Clinical School, Faculty of Medicine and Health, Charles Perkins Centre (D17), University of Sydney, Camperdown, NSW, 2006, Australia.,Sydney Local Health District, Camperdown, NSW, Australia
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