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      The network approach to posttraumatic stress disorder: a systematic review Translated title: El enfoque de redes para el trastorno de estrés postraumático: Una revisión sistemática Translated title: 创伤后应激障碍的网络方法:系统综述

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          ABSTRACT

          Background: The empirical literature of network analysis studies of posttraumatic stress symptoms (PTSS) has grown rapidly over the last years.

          Objective: We aimed to assess the characteristics of these studies, and if possible, the most and least central symptoms and the strongest edges in the networks of PTSS.

          Method: The present systematic review, conducted in PsycInfo, Medline, and Web of Science, synthesizes findings from 20 cross-sectional PTSS network studies that were accepted for publication between January 2010 and November 2018 (PROSPERO ID: CRD42018112825).

          Results: Results indicated that the network studies investigated a broad range of samples and that most studies used similar analytic approaches including stability analysis. Only strength centrality was generally adequately stable. Amnesia was consistently reported to have lowest strength, while there was substantial heterogeneity regarding which nodes had highest strength centrality. The strongest edge weights were typically within each DSM-IV/DSM-5 PTSD symptom cluster.

          Conclusions: Hypothesis-driven studies are needed to determine whether the heterogeneity in networks resulted from differences in samples or whether they are the product of underlying methodological reasons.

          Antecedentes: La literatura empírica los estudios de análisis en redes de síntomas de estrés postraumático (SEPT) ha crecido rápidamente en los últimos años.

          Objetivos: Nuestro objetivo fue el evaluar las características de estos estudios y, de ser posible, evaluar cuáles eran aquellos síntomas más cardinales y cuáles no, y cuáles eran los enlaces más fuertes en las redes de los SEPT.

          Métodos: La presente revisión sistemática, realizada en PsycInfo, Medline, y Web of Science, sintetiza los hallazgos de 20 estudios transversales en redes sobre SEPT que se basaron sobre información transversal, y que fueron aceptados para publicación entre enero de 2010 y noviembre de 2018 (PROSPERO ID: CRD42018112825).

          Resultados: Los resultados indicaron que los estudios en redes investigaron un amplio rango de muestras, y que la mayoría de estudios emplearon enfoques analíticos similares, incluyendo el análisis de estabilidad. Solo la centralidad de la fuerza fue generalmente adecuadamente estable. Se informó consistentemente que la amnesia tenía la fuerza más baja, mientras que había una heterogeneidad sustancial con respecto a qué nodos tenían la centralidad de la fuerza más alta. Los pesos de los enlaces de red más fuertes se encontraban, por lo general, dentro de cada racimo de síntomas para trastorno de estrés postraumático contemplados en el DSM IV/DSM 5.

          Conclusiones: Se necesitan estudios derivados de hipótesis para determinar si la heterogeneidad de las redes resultó de las diferencias en las muestras, o si resultaron del producto de cuestiones metodológicas subyacentes.

          背景:在过去的几年中, 有关创伤后应激症状 (PTSS) 的网络分析研究的实证文献迅速增多。目的:我们旨在评估这些研究的特征, 如果可能也会评估PTSS网络中最中心和最非中心的症状以及最强边。方法:本系统综述在PsycInfo, Medline和Web of Science中进行, 总结了20项横断面PTSS网络研究的发现, 这些研究基于横断面数据并于2010年1月至2018年11月之间被接收发表 (PROSPERO ID:CRD42018112825)。结果:结果表明, 网络研究调查了各种各样的样本, 大多数研究使用了包括稳定性分析在内的类似分析方法。通常只有强度中心足够稳定。失忆症一直被报告为强度最低,而关于哪些节点的强度中心性存在很大的异质性。最强的边权重通常在每个DSM-IV/DSM-5 PTSD症状簇内。结论:需要进行假设驱动的研究, 以确定网络中的异质性是由样本差异引起还是潜在方法学原因的产物。

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          Most cited references39

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          636,120 Ways to Have Posttraumatic Stress Disorder.

          In an attempt to capture the variety of symptoms that emerge following traumatic stress, the revision of posttraumatic stress disorder (PTSD) criteria in the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) has expanded to include additional symptom presentations. One consequence of this expansion is that it increases the amorphous nature of the classification. Using a binomial equation to elucidate possible symptom combinations, we demonstrate that the DSM-IV criteria listed for PTSD have a high level of symptom profile heterogeneity (79,794 combinations); the changes result in an eightfold expansion in the DSM-5, to 636,120 combinations. In this article, we use the example of PTSD to discuss the limitations of DSM-based diagnostic entities for classification in research by elucidating inherent flaws that are either specific artifacts from the history of the DSM or intrinsic to the underlying logic of the DSM's method of classification. We discuss new directions in research that can provide better information regarding both clinical and nonclinical behavioral heterogeneity in response to potentially traumatic and common stressful life events. These empirical alternatives to an a priori classification system hold promise for answering questions about why diversity occurs in response to stressors.
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            Mental Disorders as Causal Systems: A Network Approach to Posttraumatic Stress Disorder

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              The Study of Psychopathology from the Network Analysis Perspective: A Systematic Review

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                Author and article information

                Journal
                Eur J Psychotraumatol
                Eur J Psychotraumatol
                ZEPT
                zept20
                European Journal of Psychotraumatology
                Taylor & Francis
                2000-8066
                2020
                8 January 2020
                : 11
                : 1
                : 1700614
                Affiliations
                [a ]Section for Implementation and Treatment Research, Norwegian Centre for Violence and Traumatic Stress Studies , Oslo, Norway
                [b ]Department of Community Mental Health, University of Haifa , Haifa, Israel
                [c ]Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich , Zürich, Switzerland
                Author notes
                CONTACT Marianne Skogbrott Birkeland marianne.s.birkeland@ 123456gmail.com Norwegian Centre for Violence and Traumatic Stress Studies , Box 181 Nydalen, Oslo 0409, Norway
                Author information
                http://orcid.org/0000-0002-2388-8474
                http://orcid.org/0000-0002-3044-2841
                http://orcid.org/0000-0002-0107-0743
                Article
                1700614
                10.1080/20008198.2019.1700614
                6968637
                32002135
                5241ffbc-756a-4a0c-a75b-56c6e1593d6b
                © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

                This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License ( http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 29 August 2019
                : 14 October 2019
                : 04 November 2019
                Page count
                Figures: 3, Tables: 1, References: 60, Pages: 15
                Categories
                Review Article

                Clinical Psychology & Psychiatry
                network analysis,ptsd,systematic review,análisis de redes,tept,revisión sistematica,网络分析,系统综述,• this is the first preregistered systematic review of network analysis of posttraumatic stress symptoms (ptsd).• there is considerable heterogeneity in the current cross-sectional network studies of posttraumatic stress symptoms.• future investigations of ptsd from a network perspective should aim to explain this heterogeneity, conduct intensive longitudinal studies of ptsd, and develop a network theoretical account of ptsd.

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