Developing a Model for Suicide Ideation after Severe Traumatic Brain Injury Using Structural Equation Modelling

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avondale-bepress-to-dspace.facultyNursing
avondale-bepress-to-dspace.peer_review_statusPeer reviewed before publication
avondale-bepress.abstract<p><em>Objectives</em>: The risk of suicide ideation (SI) after severe traumatic brain injury (TBI) is double the level within the general population. Little is known about the mechanisms underlying this elevated risk. This study aimed to develop an explanatory model of SI after severe TBI, based on the interaction among distal (predisposing) and proximal (precipitating) risk factors, protective factors and SI.</p> <p><em>Methods</em>: Participants (<em>n</em> = 90) with very severe TBI (Post Traumatic Amnesia > 7 days) were recruited from the Liverpool Brain Injury Rehabilitation Unit in Sydney Australia. Participants completed a battery of neuropsychological tests targeting executive functions as well as self-report measures of SI, positive and negative mood states, stress, self-awareness, self-esteem and problem-solving. Treating clinicians rated participants on measures of aggression, frontal systems dysfunction and participation. Data were analysed using structural equation modelling.</p> <p><em>Results</em>: The final model demonstrated good fit indices (NFI = 0.924, IFI = 0.994, TLI = 0.986, CFI = 0.993, RMSEA = 0.03). The model accounted for 34% of the variance in SI. One distal risk factor, poor problem-solving, had a direct relationship to SI. Other distal risk factors including post-injury aggression and disinhibition had direct and indirect links to depression (a proximal risk factor), which in turn mediated their relationship to hopelessness and SI. The protective factors (social support, hope, community participation, self-esteem) mediated the relationship between distal/proximal risk factors, hopelessness and SI. The protective effect of social support and community participation was mediated through their association with increased levels of hope and self-esteem.</p> <p><em>Conclusions</em>: The current model demonstrates the direct and indirect effects of risk factors and protective factors associated with SI after severe TBI. The model provides several suggested targets for clinical intervention to build positive mental health and reduce suicide risk. The model can now be tested prospectively to evaluate its predictive validity.</p>
avondale-bepress.articleid1116
avondale-bepress.authorsGrahame K Simpson
avondale-bepress.authorsRobyn Tate
avondale-bepress.authorsMalcolm Anderson
avondale-bepress.authorsPeter Morey
avondale-bepress.context-key9413185
avondale-bepress.coverpage-urlhttps://research.avondale.edu.au/nh_papers/114
avondale-bepress.document-typeconference
avondale-bepress.field.author_faculty_disciplineNursing
avondale-bepress.field.comments<p>Due to copyright restrictions this article is unavailable for download.</p> <p>Copyright © 2016 Taylor and Francis Group LLC</p> <p>This article may be accessed from the publisher <a href="http://dx.doi.org/10.3109/02699052.2016.1162060">here.</a></p>
avondale-bepress.field.custom_citation<p>Simpson, G., Tate, R., Anderson, M., & Morey, P. (2016, March). Developing a model for suicide ideation after severe traumatic brain injury using structural equation modelling. Abstract presented at the International Brain Injury Association. <em>Brain Injury, 30</em>(5-6), 636. doi:10.3109/02699052.2016.1162060</p>
avondale-bepress.field.doihttps://doi.org/10.3109/02699052.2016.1162060
avondale-bepress.field.email_boxtrue
avondale-bepress.field.embargo_date2016-11-23T00:00:00Z
avondale-bepress.field.field_of_education06 Health
avondale-bepress.field.for110703 Autoimmunity
avondale-bepress.field.issn1362-301X
avondale-bepress.field.issue_number5-6
avondale-bepress.field.journalBrain Injury
avondale-bepress.field.page_numbers636
avondale-bepress.field.peer_reviewBefore publication
avondale-bepress.field.publication_date2016-05-19T00:00:00Z
avondale-bepress.field.reportable_itemsE5
avondale-bepress.field.source_fulltext_urlhttps://doi.org/10.3109/02699052.2016.1162060
avondale-bepress.field.source_publication<p>This article was originally published as:</p> <p>Simpson, G., Tate, R., Anderson, M., & Morey, P. (2016, March). Developing a model for suicide ideation after severe traumatic brain injury using structural equation modelling. Abstract presented at the International Brain Injury Association. <em>Brain Injury, 30</em>(5-6), 636. doi:10.3109/02699052.2016.1162060</p> <p>ISSN: 1362-301X</p>
avondale-bepress.field.staff_classificationPermanent
avondale-bepress.field.volume_number30
avondale-bepress.keywordsbrain injury
avondale-bepress.keywordssuicide ideation
avondale-bepress.label114
avondale-bepress.publication-date2016-05-19T00:00:00Z
avondale-bepress.publication-titleNursing and Health Papers and Journal Articles
avondale-bepress.statepublished
avondale-bepress.submission-date2016-11-23T18:00:13Z
avondale-bepress.submission-pathnh_papers/114
avondale-bepress.titleDeveloping a Model for Suicide Ideation after Severe Traumatic Brain Injury Using Structural Equation Modelling
avondale-bepress.typearticle
dc.contributor.authorMorey, Peter
dc.contributor.authorAnderson, Malcolm
dc.contributor.authorTate, Robyn
dc.contributor.authorSimpson, Grahame K.
dc.date.accessioned2023-11-01T00:24:15Z
dc.date.available2023-11-01T00:24:15Z
dc.date.issued2016-05-19
dc.date.submitted2016-11-23T18:00:13Z
dc.description.abstract<p><em>Objectives</em>: The risk of suicide ideation (SI) after severe traumatic brain injury (TBI) is double the level within the general population. Little is known about the mechanisms underlying this elevated risk. This study aimed to develop an explanatory model of SI after severe TBI, based on the interaction among distal (predisposing) and proximal (precipitating) risk factors, protective factors and SI.</p> <p><em>Methods</em>: Participants (<em>n</em> = 90) with very severe TBI (Post Traumatic Amnesia > 7 days) were recruited from the Liverpool Brain Injury Rehabilitation Unit in Sydney Australia. Participants completed a battery of neuropsychological tests targeting executive functions as well as self-report measures of SI, positive and negative mood states, stress, self-awareness, self-esteem and problem-solving. Treating clinicians rated participants on measures of aggression, frontal systems dysfunction and participation. Data were analysed using structural equation modelling.</p> <p><em>Results</em>: The final model demonstrated good fit indices (NFI = 0.924, IFI = 0.994, TLI = 0.986, CFI = 0.993, RMSEA = 0.03). The model accounted for 34% of the variance in SI. One distal risk factor, poor problem-solving, had a direct relationship to SI. Other distal risk factors including post-injury aggression and disinhibition had direct and indirect links to depression (a proximal risk factor), which in turn mediated their relationship to hopelessness and SI. The protective factors (social support, hope, community participation, self-esteem) mediated the relationship between distal/proximal risk factors, hopelessness and SI. The protective effect of social support and community participation was mediated through their association with increased levels of hope and self-esteem.</p> <p><em>Conclusions</em>: The current model demonstrates the direct and indirect effects of risk factors and protective factors associated with SI after severe TBI. The model provides several suggested targets for clinical intervention to build positive mental health and reduce suicide risk. The model can now be tested prospectively to evaluate its predictive validity.</p>
dc.description.versionBefore publication
dc.identifier.citation<p>Simpson, G., Tate, R., Anderson, M., & Morey, P. (2016, March). Developing a model for suicide ideation after severe traumatic brain injury using structural equation modelling. Abstract presented at the International Brain Injury Association. <em>Brain Injury, 30</em>(5-6), 636. doi:10.3109/02699052.2016.1162060</p>
dc.identifier.doihttps://doi.org/10.3109/02699052.2016.1162060
dc.identifier.issn1362-301X
dc.identifier.urihttps://research.avondale.edu.au/handle/123456789/09413185
dc.language.isoen_us
dc.provenance<p>This article was originally published as:</p> <p>Simpson, G., Tate, R., Anderson, M., & Morey, P. (2016, March). Developing a model for suicide ideation after severe traumatic brain injury using structural equation modelling. Abstract presented at the International Brain Injury Association. <em>Brain Injury, 30</em>(5-6), 636. doi:10.3109/02699052.2016.1162060</p> <p>ISSN: 1362-301X</p>
dc.rights<p>Due to copyright restrictions this article is unavailable for download.</p> <p>Copyright © 2016 Taylor and Francis Group LLC</p> <p>This article may be accessed from the publisher <a href="http://dx.doi.org/10.3109/02699052.2016.1162060">here.</a></p>
dc.subjectbrain injury
dc.subjectsuicide ideation
dc.titleDeveloping a Model for Suicide Ideation after Severe Traumatic Brain Injury Using Structural Equation Modelling
dc.typeConference Publication
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