The role of rumination and positive beliefs about rumination in eating pathology.
The role of rumination and positive beliefs about rumination in eating pathology.
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DOI：
10.1007/s40519-021-01209-1
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发表时间：
2022-04
影响因子：
2.9
通讯作者：
Anderson, Lisa M.
中科院分区：
文献类型：
--
作者：
Rich, Alexandra C.;Haynos, Ann F.;Anderson, Drew A.;Ehrlich, Lauren E.;Anderson, Lisa M.
一般性反刍和特定进食障碍（ED）反刍已被确定为可能导致进食病理的关键因素。对反刍的积极信念（例如，“反刍有助于我防止未来犯错”）可能会影响这种关联。然而，对反刍的积极信念在反刍与进食障碍症状严重程度之间的联系中所起的作用尚未得到研究。本研究旨在阐明反刍与进食障碍症状严重程度之间的关系，并评估对反刍的积极信念对这些关联的潜在调节作用。
在一次实验室访问中，本科生参与者（N = 473，平均年龄 = 18.90 ± 2.27岁，平均身体质量指数 = 23.45千克/平方米 ± 4.31，54.8%为女性）完成了一组在线问卷调查，评估一般性和特定进食障碍的反刍过程（例如，沉思、反思）、对反刍的积极信念以及整体进食障碍症状。分层多元回归分析评估了特定反刍过程的独特贡献，以及积极信念在反刍过程与进食障碍症状严重程度之间关联中的调节作用。
分层多元回归结果表明，在控制性别和身体质量指数后，特定进食障碍的沉思，b = 1.32，标准误 = 0.13，β = 0.46，p < 0.0001，以及反思，b = 1.44，标准误 = 0.33，β = 0.19，p < 0.0001，对进食障碍症状严重程度有独特的方差贡献。调节模型结果显示，在一般性反思水平较低时，b = - 0.06，标准误 = 0.02，β = - 0.51，p = 0.003，以及特定进食障碍反思水平较低时，b = - 0.15，标准误 = 0.03，β = - 0.59，p < 0.0001，对反刍的积极信念增强与进食障碍症状严重程度加重相关。
研究结果表明，特定进食障碍反刍对进食障碍症状严重程度的解释力超过一般性反刍，并且与反刍相关的预期会影响反思与进食障碍症状严重程度之间的关联。
三级证据，来自精心设计的队列研究。
General and eating disorder (ED)-specific ruminations have been identified as key factors that may contribute to eating pathology. Positive beliefs about rumination (e.g., “Ruminating helps me to prevent future mistakes”) may impact this association. However, the effect of positive beliefs about rumination on the links between rumination and ED symptom severity has not been investigated. This study sought to clarify relations between rumination and ED symptom severity and to evaluate the potential moderating effect of positive beliefs about rumination on these associations. During a laboratory visit, undergraduate participants (N = 473, MAge = 18.90 ± 2.27, MBMI = 23.45 kg/m2 ± 4.31, 54.8% female) completed an online battery of questionnaires assessing general and ED-specific ruminative processes (e.g., brooding, reflection), positive beliefs about rumination, and global ED symptoms. Hierarchical multiple regression analyses assessed the unique contributions of specific ruminative processes, and the moderating effect of positive beliefs on associations between ruminative processes and ED symptom severity. Hierarchical multiple regression results suggest that, after controlling for gender and BMI, ED-specific brooding, b = 1.32, SE = 0.13, β = 0.46, p < 0.0001, and reflection, b = 1.44, SE = 0.33, β = 0.19, p < 0.0001, accounted for unique variance in ED symptom severity. Moderation model results indicate that, at low levels of general reflection, b = − 0.06, SE = 0.02, β = − 0.51, p = 0.003, and ED-specific reflection, b = − 0.15, SE = 0.03, β = − 0.59, p < 0.0001, increased positive beliefs about rumination were associated with greater ED symptom severity. Findings suggest ED-specific rumination accounts for ED symptom severity above and beyond general rumination, and that rumination-related expectancies influence the association between reflection and ED symptom severity. Level III, evidence obtained from a well-designed cohort study.
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