Hyde-Smith Craig, Carey Holly, Steward Trevor
Melbourne School of Psychological Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia.
Department of Psychiatry, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia.
J Eat Disord. 2024 Nov 4;12(1):173. doi: 10.1186/s40337-024-01138-1.
Perfectionism has been identified as a vulnerability and maintenance factor across eating disorders (EDs). Additionally, research has found that intolerance of uncertainty (IU) and repetitive negative thinking (RNT) moderate the relationship between perfectionism and psychopathology. Despite this evidence, few studies have examined if these factors specifically moderate ED severity. This study aimed to fill this gap by investigating the moderating effect of IU and RNT on the relationship between perfectionism and ED symptoms, as well as the predictive power of these factors on identifying participants with clinically significant ED symptoms. 331 treatment-seeking adults from a university-affiliated community clinic and 264 undergraduate students completed measures to assess ED symptoms, RNT, perfectionism and IU. 147 participants (24.7% of the total sample) had clinically significant levels of ED symptoms as determined by the Eating Disorder Questionnaire Short-Form (EDE-QS). Multiple linear regressions found significant associations between ED symptoms and both the IUperfectionism interaction (p < .001) and the RNTperfectionism interaction (p < .001). A binary logistic regression identified that both the IUperfectionism interaction (p = .03) and the RNTperfectionism interaction (p = .001) predicted clinically significant EDE-QS scores. The findings indicate that both IU and RNT moderate the relationship between perfectionism and ED symptoms and build on previous literature recognising transdiagnostic contributors to ED symptomatology.
完美主义已被确定为进食障碍（EDs）的一个易感性和维持因素。此外，研究发现，对不确定性的不耐受（IU）和重复性消极思维（RNT）调节了完美主义与精神病理学之间的关系。尽管有这些证据，但很少有研究考察这些因素是否具体调节了进食障碍的严重程度。本研究旨在通过调查IU和RNT对完美主义与进食障碍症状之间关系的调节作用，以及这些因素对识别具有临床显著进食障碍症状的参与者的预测能力，来填补这一空白。来自大学附属社区诊所的331名寻求治疗的成年人和264名本科生完成了评估进食障碍症状、RNT、完美主义和IU的测量。根据进食障碍问卷简表（EDE-QS）确定，147名参与者（占总样本的24.7%）有临床显著水平的进食障碍症状。多元线性回归发现进食障碍症状与IU完美主义交互作用（p <.001）和RNT完美主义交互作用（p <.001）之间均存在显著关联。二元逻辑回归确定，IU完美主义交互作用（p =.03）和RNT完美主义交互作用（p =.001）均能预测具有临床显著意义的EDE-QS分数。研究结果表明，IU和RNT均调节了完美主义与进食障碍症状之间的关系，并基于以往认识到进食障碍症状的跨诊断因素的文献。
