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The network approach to posttraumatic stress disorder: a systematic review


Birkeland, Marianne Skogbrott; Greene, Talya; Spiller, Tobias Raphael (2020). The network approach to posttraumatic stress disorder: a systematic review. European Journal of Psychotraumatology, 11:1700614.

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.

Keywords: Network analysis; PTSD; systematic review; • 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.

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.

Keywords: Network analysis; PTSD; systematic review; • 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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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Klinik für Konsiliarpsychiatrie und Psychosomatik
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > Psychiatry and Mental Health
Language:English
Date:8 January 2020
Deposited On:03 Feb 2021 14:26
Last Modified:06 Feb 2021 04:33
Publisher:Co-Action Publishing
ISSN:2000-8066
OA Status:Gold
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1080/20008198.2019.1700614
PubMed ID:32002135

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