Department of Clinical Psychology, Iran University of Medical Sciences, Tehran, Iran.
Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky, USA.
Int J Eat Disord. 2021 Feb;54(2):132-147. doi: 10.1002/eat.23365. Epub 2020 Aug 31.
The network theory of psychopathology examines networks of interconnections across symptoms. Several network studies of disordered eating have identified central and bridge symptoms in Western samples, yet network models of disordered eating have not been tested in non-Western samples. The current study tested a network model of disordered eating in Iranian adolescents and college students, as well as models of co-occurring depression and self-esteem.
Participants were Iranian college students (n= 637) and adolescents (n = 1,111) who completed the Eating Disorder Examination-Questionnaire (EDE-Q), Rosenberg Self-Esteem Scale (RSES) and Beck Depression Inventory, Second Edition (BDI-II). We computed six Glasso networks and identified central and bridge symptoms.
Central disordered eating nodes in most models were a desire to lose weight and discomfort when seeing one's own body. Central self-esteem and depression nodes were feeling useless and self-dislike, respectively. Feeling like a failure was the most common bridge symptom between disordered eating and depression symptoms. With exception of a few differences in some edges, networks did not significantly differ in structure.
Desire to lose weight was the most central node in the networks, which is consistent with sociocultural theories of disordered eating development, as well as prior network models from Western-culture samples. Feeling like a failure was the most central bridge symptom between depression and disordered eating, suggesting that very low self-esteem may be a shared correlate or risk factor for disordered eating and depression in Iranian adolescents and young adults.
精神病理学的网络理论研究了症状之间相互关联的网络。几项关于饮食失调的网络研究已经确定了西方样本中中心和桥梁症状，但饮食失调的网络模型尚未在非西方样本中进行测试。本研究测试了伊朗青少年和大学生饮食失调的网络模型，以及共病抑郁和自尊的模型。
参与者为伊朗大学生（n=637）和青少年（n=1111），他们完成了饮食失调检查问卷（EDE-Q）、罗森伯格自尊量表（RSES）和贝克抑郁量表第二版（BDI-II）。我们计算了六个 Glasso 网络，并确定了中心和桥梁症状。
大多数模型中的中心饮食失调节点是减肥的欲望和看到自己身体时的不适。中心自尊和抑郁节点分别是无用感和自我厌恶。失败感是饮食失调和抑郁症状之间最常见的桥梁症状。除了一些边缘的差异外，网络在结构上没有显著差异。
减肥的欲望是网络中最中心的节点，这与饮食失调发展的社会文化理论以及西方文化样本中的先前网络模型一致。失败感是抑郁和饮食失调之间最中心的桥梁症状，这表明非常低的自尊可能是伊朗青少年和年轻人饮食失调和抑郁的共同相关因素或风险因素。
