Halioua Robin, Wyssen Andrea, Iff Samuel, Karrer Yannis, Seifritz Erich, Quednow Boris B, Claussen Malte Christian
Department of Psychiatry, Psychotherapy, and Psychosomatics, Psychiatric University Hospital Zurich, University of Zurich, Lenggstrasse 31, 8032, Zurich, Switzerland.
University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland.
J Eat Disord. 2022 Jul 25;10(1):109. doi: 10.1186/s40337-022-00632-8.
Current research on muscle dysmorphia (MD) has focused on restrained eating behaviors and has adopted a primarily male perspective. Despite initial evidence, the role of possible binge eating associated with MD has only been scarcely investigated. To extend the transdiagnostic and cross-gender approaches and address the dearth in research related to MD, this study investigated the association between MD psychopathology and binge eating in men and women.
This study investigated the association between MD psychopathology and binge eating in both men and women. Participants were a sample of 5905 men (n = 422) and women (n = 5483) social media users aged 18-72 years. They completed an online survey that included self-report measures assessing demographics, binge eating, MD psychopathology, and drive for thinness and leanness. Binge eating was assessed using the diagnostic questions of the validated German version of the Eating Disorder Examination-Questionnaire. The Muscle Dysmorphic Disorder Inventory (MDDI) was used to assess MD psychopathology. A total score of > 39 was set as a cutoff to define an "MD at-risk" state for both men and women. Hierarchical logistic regression analysis was used to analyze the association between MD psychopathology and binge eating.
MD psychopathology was significantly positively associated with binge eating in both men and women. Among the three MDDI subscales, only appearance intolerance was significantly associated with MD, and drive for size and functional impairment were not associated. MD at-risk status yielded a predicted probability of binge eating of 25% for men and 66.9% for women. The increased probability of binge eating associated with MD at-risk status was mainly accounted for by appearance intolerance in men and drive for thinness in women.
MD psychopathology is positively associated with binge eating in both men and women. Binge eating episodes should therefore form part of the clinical assessment of MD.
目前关于肌肉畸形症（MD）的研究主要集中在节制饮食行为上，并且主要从男性视角展开。尽管有初步证据，但与MD相关的可能的暴饮暴食的作用却很少被研究。为了扩展跨诊断和跨性别研究方法，并解决MD相关研究的不足，本研究调查了男性和女性中MD精神病理学与暴饮暴食之间的关联。
本研究调查了男性和女性中MD精神病理学与暴饮暴食之间的关联。参与者是5905名年龄在18 - 72岁的男性（n = 422）和女性（n = 5483）社交媒体用户的样本。他们完成了一项在线调查，其中包括评估人口统计学、暴饮暴食、MD精神病理学以及追求消瘦和苗条的自我报告量表。使用经过验证的德语版《饮食失调检查问卷》的诊断问题来评估暴饮暴食。使用肌肉畸形症障碍量表（MDDI）来评估MD精神病理学。将总分> 39设定为男性和女性定义“MD风险”状态的临界值。采用分层逻辑回归分析来分析MD精神病理学与暴饮暴食之间的关联。
MD精神病理学在男性和女性中均与暴饮暴食显著正相关。在MDDI的三个子量表中，只有外表不耐受与MD显著相关，而对体型的追求和功能损害则不相关。处于MD风险状态的男性暴饮暴食的预测概率为25%，女性为66.9%。与MD风险状态相关的暴饮暴食概率增加主要由男性的外表不耐受和女性的追求消瘦所导致。
MD精神病理学在男性和女性中均与暴饮暴食正相关。因此，暴饮暴食发作应成为MD临床评估的一部分。
