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Martinez BS, Rowland JA, Shura RD, Magnante AT, Morey RA, Martindale SL. Influence of affective instability on suicidal ideation beyond traumatic brain injury and posttraumatic stress disorder in veterans. J Psychiatr Res 2024; 172:411-419. [PMID: 38458113 DOI: 10.1016/j.jpsychires.2024.02.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/02/2024] [Accepted: 02/27/2024] [Indexed: 03/10/2024]
Abstract
OBJECTIVE Mild traumatic brain injury (TBI) is associated with long-term consequences, including greater risk for posttraumatic stress disorder (PTSD) and suicidal ideation. Affective instability is also independently related to PTSD and suicidality, which may explain why some individuals continue to experience chronic psychiatric complaints following mild TBI. The purpose of the present study was to evaluate affective instability as a key factor for PTSD and suicidal ideation among Veterans with and without TBI. METHOD Participants (N = 299 Veterans; 86.96% male) completed the Personality Assessment Inventory (PAI) and structured clinical interviews for TBI and psychiatric diagnoses. Hierarchical linear regression was used to evaluate main and interaction effects. RESULTS There were no significant differences in affective instability (p = 0.140) or suicidal ideation (p = 0.453) between Veterans with or without TBI. Individuals with TBI were more likely to have a PTSD diagnosis (p = 0.001). Analyses evaluating PTSD diagnosis as an outcome indicated a main effect of affective instability (p < 0.001), but not TBI (p = 0.619). Analyses evaluating suicidal ideation as an outcome demonstrated an interaction effect between PTSD and affective instability beyond the effects of TBI (p = 0.034). CONCLUSIONS Severe Affective instability appears to be a key factor in suicidal ideation among Veterans beyond TBI or PTSD history. PTSD was more strongly associated with suicidality at lower and moderate levels of affective instability. At severe levels of affective instability, however, Veterans with and without PTSD experienced suicidal ideation at similar rates. Findings suggests that high levels of affective instability not better explained by other psychiatric conditions confers similar suicidality risk to that of PTSD in a Veteran population.
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Affiliation(s)
- Brandy S Martinez
- Durham Veteran Affairs (VA) Health Care System, Durham, NC, USA; VA (VISN 6) Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Duke-UNC Brain Imaging and Analysis Center, Duke University, Durham, NC, USA.
| | - Jared A Rowland
- VA (VISN 6) Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Research & Academic Affairs Service Line, W. G. (Bill) Hefner VA Healthcare System, Salisbury, NC, USA; Department of Neurobiology & Anatomy, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Robert D Shura
- VA (VISN 6) Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Research & Academic Affairs Service Line, W. G. (Bill) Hefner VA Healthcare System, Salisbury, NC, USA; Department of Neurology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Anna T Magnante
- VA (VISN 6) Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Research & Academic Affairs Service Line, W. G. (Bill) Hefner VA Healthcare System, Salisbury, NC, USA; Department of Neurology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Rajendra A Morey
- Durham Veteran Affairs (VA) Health Care System, Durham, NC, USA; VA (VISN 6) Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Duke-UNC Brain Imaging and Analysis Center, Duke University, Durham, NC, USA
| | - Sarah L Martindale
- VA (VISN 6) Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Research & Academic Affairs Service Line, W. G. (Bill) Hefner VA Healthcare System, Salisbury, NC, USA; Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Aaronson AL, Smith B, Krese K, Barnhart M, Adamson M, de Wit H, Philip NS, Brenner LA, Bender-Pape T, Herrold AA. Impulsivity and Psychiatric Diagnoses as Mediators of Suicidal Ideation and Suicide Attempts Among Veterans With Traumatic Brain Injury. J Neuropsychiatry Clin Neurosci 2024; 36:125-133. [PMID: 38192217 PMCID: PMC11018458 DOI: 10.1176/appi.neuropsych.20230044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
OBJECTIVE Traumatic brain injury (TBI) is a risk factor for suicide, but questions related to mechanisms remain unanswered. Impulsivity is a risk factor for suicide and is a common sequela of TBI. The authors explored the relationships between TBI and both suicidal ideation and suicide attempts and explored whether impulsivity and comorbid psychiatric diagnoses mediate these relationships. METHODS This cross-sectional retrospective chart review study included 164 veterans enrolled in a previous study. Sixty-nine veterans had no TBI history, and 95 had a TBI history (mild, N=44; moderate, N=13; severe, N=12; and unclear severity, N=26). To examine the associations between TBI and suicidal ideation or suicide attempts, as well as potential mediators of these relationships, chi-square tests, t tests, and logistic regression models were used. RESULTS Unadjusted analyses indicated that veterans with TBI were more likely to report suicidal ideation; however, in analyses controlling for mediators, this relationship was no longer significant. Among veterans with TBI, suicidal ideation was related most strongly to high impulsivity (odds ratio=15.35, 95% CI=2.43-96.79), followed by depression (odds ratio=5.73, 95% CI=2.53-12.99) and posttraumatic stress disorder (odds ratio=2.57, 95% CI=1.03-6.42). TBI was not related to suicide attempts, yet suicide attempts were related to high impulsivity (odds ratio=6.95, 95% CI=1.24-38.75) and depression (odds ratio=3.89, 95% CI=1.56-9.40). CONCLUSIONS These findings suggest that impulsivity, followed by psychiatric diagnoses, most strongly mediate the relationships between TBI and both suicidal ideation and suicide attempts. Impulsivity may be mechanistically related to, and serve as a future treatment target for, suicidality among veterans with TBI.
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Affiliation(s)
- Alexandra L Aaronson
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Bridget Smith
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Kelly Krese
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Meghan Barnhart
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Maheen Adamson
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Harriet de Wit
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Noah S Philip
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Lisa A Brenner
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Theresa Bender-Pape
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
| | - Amy A Herrold
- Mental Health Service Line (Aaronson) and Research Service Line (Smith, Bender-Pape, Herrold), Edward J. Hines Veterans Administration Hospital, Hines, Ill.; Department of Psychiatry, University of Illinois, Chicago (Aaronson); Brain Innovation Center, Shirley Ryan AbilityLab, Chicago (Krese); Chicago Association for Research and Education in Science, Hines, Ill. (Krese); Rocky Mountain Mental Illness Research, Education, and Clinical Center for Suicide Prevention, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colo. (Barnhart, Brenner); Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora (Barnhart, Brenner); Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif. (Adamson); Department of Neurosurgery, Stanford University, Stanford, Calif. (Adamson); Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago (de Wit); Center for Neurorestoration and Neurotechnology, Veterans Affairs Providence Health Care System, Providence, R.I. (Philip); Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, R.I. (Philip); Departments of Physical Medicine and Rehabilitation (Bender-Pape) and Psychiatry and Behavioral Sciences (Herrold), Northwestern University, Chicago
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