Lifestyle risk factors for obsessive-compulsive symptoms and related phenomena: What should lifestyle interventions target?

Objective: Understanding the impact of lifestyle on mental illness symptoms is important for informing psycho-education and developing interventions which target mental and physical comorbidities. Obsessive-compulsive and related disorders can have a significant impact on health-related quality of l...

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Published in:Australian and New Zealand journal of psychiatry 2023-03, Vol.57 (3), p.379-390
Main Authors: Brierley, Mary-Ellen E, Albertella, Lucy, Christensen, Erynn, Rotaru, Kristian, Jacka, Felice N, Segrave, Rebecca A, Richardson, Karyn E, Lee, Rico SC, Kayayan, Edouard, Hughes, Sam, Yücel, Murat, Fontenelle, Leonardo F
Format: Article
Language:English
Subjects:
Compulsive Behavior - psychology
Humans
Impulsive Behavior
Obsessive-Compulsive Disorder - diagnosis
Quality of Life
Risk Factors
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Summary:Objective: Understanding the impact of lifestyle on mental illness symptoms is important for informing psycho-education and developing interventions which target mental and physical comorbidities. Obsessive-compulsive and related disorders can have a significant impact on health-related quality of life and physical health. However, our understanding of the impact of lifestyle on obsessive-compulsive symptoms and broader compulsive and impulsive problematic repetitive behaviours is limited. Aims: We investigated whether lifestyle factors predicted change in obsessive-compulsive symptoms and problematic repetitive behaviours in a general population sample over a 3-month period. Methods: Eight hundred thirty-five participants completed an online questionnaire battery assessing lifestyle and mental health. Of these, 538 participants completed the same battery 3 months later. We conducted negative binomial regressions to analyse the association of lifestyle factors at baseline with future (1) obsessive-compulsive symptoms, (2) compulsive problematic repetitive behaviours and (3) impulsive problematic repetitive behaviours, adjusting for baseline obsessive-compulsive symptoms and problematic repetitive behaviours. Results: Lower vegetable (p = 0.020) and oily fish (p = 0.040) intake and lower moderate intensity physical activity (p = 0.008) predicted higher obsessive-compulsive symptoms at follow-up. Higher intake of high-fat foods (p 
ISSN:0004-8674
1440-1614
DOI:10.1177/00048674221085923