Psychosocial family-level mediators in the intergenerational transmission of trauma: Protocol for a systematic review and meta-analysis

Emma J Mew, Kate Nyhan, Jessica L Bonumwezi, Vanessa Blas, Hannah Gorman, Rachel Hennein, Kevin Quach, Veronika Shabanova, Nicola L Hawley and Sarah R Lowe

PLOS ONE, 2022, vol. 17, issue 11, 1-12

Abstract: Introduction: Family-level psychosocial factors appear to play a critical role in mediating the intergenerational transmission of trauma; however, no review article has quantitatively synthesized causal mechanisms across a diversity of trauma types. This study aims to systematically consolidate the epidemiological research on family-level psychosocial mediators and moderators to ultimately produce causal diagram(s) of the intergenerational transmission of trauma. Methods: We will identify epidemiological peer-reviewed publications, dissertations, and conference abstracts that measure the impact of at least one psychosocial family-level factor mediating or moderating the relationship between parental trauma exposure and a child mental health outcome. English, French, Kinyarwanda, and Spanish articles will be eligible. We will search MEDLINE, PsycINFO, PTSDpubs, Scopus, and ProQuest Dissertations and Theses and will conduct forward citation chaining of included documents. Two reviewers will perform screening independently. We will extract reported mediators, moderators, and relevant study characteristics for included studies. Findings will be presented using narrative syntheses, descriptive analyses, mediation meta-analyses, moderating meta-analyses, and causal diagram(s), where possible. We will perform a risk of bias assessment and will assess for publication bias. Discussion: The development of evidence-based causal diagram(s) would provide more detailed understanding of the paths by which the psychological impacts of trauma can be transmitted intergenerationally at the family-level. This review could provide evidence to better support interventions that interrupt the cycle of intergenerational trauma. Trial registration: Systematic review registration: PROSPERO registration ID #CRD42021251053.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0276753

DOI: 10.1371/journal.pone.0276753

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