Longitudinal Group and Individual Networks of Eating Disorder Symptoms in Individuals Diagnosed With an Eating Disorder
Longitudinal Group and Individual Networks of Eating Disorder Symptoms in Individuals Diagnosed With an Eating Disorder
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DOI：
10.1037/abn0000727
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发表时间：
2021-12-23
期刊：
影响因子：
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通讯作者：
Ralph-Nearman, Christina
中科院分区：
文献类型：
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作者：
Levinson, Cheri A.;Hunt, Rowan A.;Ralph-Nearman, Christina
进食障碍是一种严重的精神疾病，具有很高的死亡率和社会成本。尽管病情严重，但几乎没有循证治疗方法，只有50%的人对现有治疗方法有反应。这种低应答率可能是由于ED是高度异质性疾病的事实。需要对个别维护因素进行干预的精确治疗。这种治疗发展的第一步是确定群体(即平均水平)和个人一级的中心治疗目标。目前的研究(N=102名患有勃起功能障碍的个体)利用密集的纵向数据来模拟几种类型的群体水平和个体网络模型。总体而言，我们确定了几个群体级别的中心症状，其中最常见的中心症状是害怕体重增加、渴望苗条、感觉自己吃得太多、考虑节食和感到内疚。我们还发现，这些症状，特别是对体重增加的恐惧，想要变瘦，考虑节食，感觉自己吃得太多，以及感到内疚，在1个月和6个月的随访中预测了ED的严重程度。我们对97个个体网络进行了建模，发现无论诊断为ED，中心症状都具有高度的异质性。这项工作增加了越来越多的文献，使用密集的纵向数据来模拟ED病理，并暗示对体重增加的恐惧、考虑节食和内疚是需要进一步治疗开发工作的症状。此外，这项工作还提供了关于如何使用组和个人网络建模来概念化平均和个人级别的ED维护的基本知识。
Eating disorders (EDs) are serious psychiatric illnesses with high mortality and societal cost. Despite their severity, there are few evidence-based treatments, and only 50% of individuals respond to existing treatments. This low response rate may be due to the fact that EDs are highly heterogeneous disorders. Precision treatments are needed that can intervene on individual maintenance factors. The first step in such treatment development is identification of central treatment targets, both at the group (i.e., on average) and individual level. The current study (N = 102 individuals with an ED) utilized intensive longitudinal data to model several types of group-level and individual network models. Overall, we identified several group-level central symptoms, with the most common central symptoms of fear of weight gain, desire for thinness, feeling like one is overeating, thinking about dieting, and feeling guilty. We also found that these symptoms, specifically fear of weight gain, a desire to be thinner, thinking about dieting, feeling like one is overeating, and feeling guilty, predicted ED severity at a 1- and 6-month follow-up. We modeled 97 individual networks and found that central symptoms were highly heterogeneous, regardless of ED diagnosis. This work adds to the growing literature using intensive longitudinal data to model ED pathology and implicates fear of weight gain, thinking about dieting, and feelings of guilt as symptoms needing further treatment development work. Additionally, this work contributes essential knowledge on how group and individual network modeling can be used to conceptualize the maintenance of EDs on average and at the individual level.