Show simple item record

Date of
Available in OPARU
Date of first
AbstractBackground: While Internet- and mobile-based interventions (IMIs) are potential options to increase the access to evidence-based therapies for post-traumatic stress disorder (PTSD), comprehensive knowledge on their working mechanisms is still scarce. Objective: We aimed to evaluate studies investigating the efficacy and mechanisms of change in IMIs for adults with PTSD. Method: In this systematic review and meta-analysis (PROSPERO CRD42019130314), five databases were consulted to identify relevant studies, complemented by forward (i.e. citation search) and backward (i.e. review of reference lists from included studies) searches. Randomized controlled trials (RCTs) investigating the efficacy of IMIs compared to active controls, as well as component and mediation studies were included. Two independent reviewers extracted the data and assessed the risk of bias and requirements for process research. Random-effects meta-analyses on PTSD symptom severity as primary outcome were conducted and further information was synthesized qualitatively. Results: In total, 33 RCTs were included (N = 5421). The meta-analysis comparing IMIs to non-bonafide active controls yielded a significant standardized mean difference (SMD) of −0.36 (95%CI −0.53 to −0.19) favouring IMIs. Although meta-analytic pooling was not possible for the component and mediation studies, evidence suggests no differential effects regarding PTSD symptom reduction between different levels of support and personalization and between different types of exposure. Moreover, mediation studies revealed significant intervening variable effects for self-efficacy beliefs, perceived physical impairment, social acknowledgement, and trauma disclosure. Conclusions: Results indicate that IMIs for PTSD are superior to active controls. Furthermore, findings may contribute to the development of new interventions by outlining important directions for future research (e.g. regarding requirements for process research) and highlighting potential mechanisms of change (i.e. self-efficacy, perceived physical impairment, social acknowledgement, and trauma disclosure).dc.description.abstract
PublisherUniversität Ulmdc.publisher
LicenseCC BY-NC 4.0 Internationaldc.rights
Link to license text
Keyworddigital healthdc.subject
Keywordcomponent studiesdc.subject
Dewey Decimal GroupDDC 150 / Psychologydc.subject.ddc
Dewey Decimal GroupDDC 610 / Medicine & healthdc.subject.ddc
MeSHMobile applicationsdc.subject.mesh
MeSHStress disorders, Post-traumaticdc.subject.mesh
TitleMechanisms of change in Internet- and mobile-based interventions for PTSD: a systematic review and meta-analysisdc.title
Resource typeWissenschaftlicher Artikeldc.type
GNDPosttraumatisches Stresssyndromdc.subject.gnd
FacultyFakultät für Ingenieurwissenschaften, Informatik und Psychologieuulm.affiliationGeneral
InstitutionInstitut für Psychologie und Pädagogikuulm.affiliationSpecific
InstitutionUKU. Klinik für Kinder- und Jugendpsychiatrie/Psychotherapieuulm.affiliationSpecific
Peer reviewjauulm.peerReview
DCMI TypeTextuulm.typeDCMI
Is Supplemented By
DOI of original publication10.1080/20008198.2021.1879551dc.relation1.doi
Source - Title of sourceEuropean Journal of Psychotraumatologysource.title
Source - Place of publicationTaylor & Francis Open Accesssource.publisher
Source - Volume12source.volume
Source - Issue1source.issue
Source - Year2021source.year
Source - Article number1879551source.articleNumber
Source - eISSN2000-8066source.identifier.eissn
FundingBMBF [FKZ01KG1802]uulm.funding
Open AccessDOAJ Golduulm.OA
University Bibliographyjauulm.unibibliographie

Files in this item


This item appears in the following Collection(s)

Show simple item record

CC BY-NC 4.0 International
Except where otherwise noted, this item's license is described as CC BY-NC 4.0 International