Serier Kelsey N, Livingston Whitney S, Zelkowitz Rachel L, Kehle-Forbes Shannon, Smith Brian N, Mitchell Karen S
National Center for PTSD, Women's Health Sciences Division, VA Boston Healthcare System, Boston, Massachusetts, USA.
Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts, USA.
Eat Disord. 2024 Sep 15:1-16. doi: 10.1080/10640266.2024.2391214.
Trauma is a risk factor for eating disorders (EDs). Enhanced understanding of the pathways from trauma to EDs could identify important treatment targets. Guided by theory, the present study sought to replicate previous findings identifying posttraumatic stress disorder (PTSD) symptoms and shape/weight overvaluation as important pathways between trauma and ED symptoms and extend this work by investigating the role of posttraumatic cognitions in these associations. The sample included 825 female and 565 male post-9/11 veterans who completed cross-sectional survey measures of trauma, posttraumatic cognitions, PTSD symptoms, shape/weight overvaluation, and ED symptoms. Gender-stratified structural equation models were used to examine direct and indirect pathways from trauma exposure to EDs via PTSD symptoms and shape/weight overvaluation (replication) and posttraumatic cognitions (extension). Results suggested that trauma exposure was indirectly associated with ED symptoms via shape/weight overvaluation and posttraumatic cognitions. There was no indirect association between trauma exposure and ED symptoms via PTSD symptoms. Overall, findings from this study highlight the potential role of posttraumatic cognitions in understanding the association between trauma and ED symptoms. However, future longitudinal research is needed to verify the directionality of these associations and investigate cognitions as a potentially targetable risk mechanism in co-occurring trauma and EDs.
创伤是饮食失调(EDs)的一个风险因素。深入了解从创伤到饮食失调的途径有助于确定重要的治疗靶点。在理论指导下,本研究旨在重复先前的研究结果,即确定创伤后应激障碍(PTSD)症状以及体型/体重过度重视是创伤与饮食失调症状之间的重要途径,并通过调查创伤后认知在这些关联中的作用来扩展这项工作。样本包括825名女性和565名男性9·11事件后的退伍军人,他们完成了关于创伤、创伤后认知、PTSD症状、体型/体重过度重视和饮食失调症状的横断面调查测量。采用性别分层结构方程模型来检验从创伤暴露通过PTSD症状和体型/体重过度重视(重复)以及创伤后认知(扩展)到饮食失调的直接和间接途径。结果表明,创伤暴露通过体型/体重过度重视和创伤后认知与饮食失调症状间接相关。创伤暴露与饮食失调症状之间不存在通过PTSD症状的间接关联。总体而言,本研究结果突出了创伤后认知在理解创伤与饮食失调症状之间关联方面的潜在作用。然而,未来需要进行纵向研究来验证这些关联的方向性,并将认知作为同时出现的创伤和饮食失调中一个潜在的可靶向风险机制进行调查。