Post-traumatic symptom severity mediates the association between combat exposure and suicidal ideation in veterans.

Autor: Glenn JJ; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA., Dillon KH; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA.; Duke University Medical Center, Durham, North Carolina, USA., Dennis PA; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA.; Duke University Medical Center, Durham, North Carolina, USA., Patel TA; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA., Mann AJ; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA., Calhoun PS; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA.; Duke University Medical Center, Durham, North Carolina, USA.; VA Center for Health Services Research in Primary Care, Durham, North Carolina, USA., Kimbrel NA; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA.; Duke University Medical Center, Durham, North Carolina, USA.; VA Center for Health Services Research in Primary Care, Durham, North Carolina, USA., Beckham JC; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA.; Duke University Medical Center, Durham, North Carolina, USA., Elbogen EB; Durham Veterans Affairs Health Care System, Durham, North Carolina, USA.; Education and Clinical Center, VA Mid-Atlantic Mental Illness Research, Durham, North Carolina, USA.; Duke University Medical Center, Durham, North Carolina, USA.
Jazyk: angličtina
Zdroj: Suicide & life-threatening behavior [Suicide Life Threat Behav] 2020 Dec; Vol. 50 (6), pp. 1167-1172. Date of Electronic Publication: 2020 Aug 08.
DOI: 10.1111/sltb.12678
Abstrakt: Objective: Previous studies of military veterans have produced mixed findings regarding whether combat exposure is directly related to suicidal ideation or is indirectly related to suicidal ideation via its influence on other factors. The present study used a longitudinal design to test the hypothesis that post-traumatic stress disorder (PTSD) symptom severity mediates the effect of combat exposure on suicidal ideation in veterans.
Method: Participants included 319 post-9/11 veterans (83.4% male; 42.1% White/52.1% Black; M age  = 39.7) assessed at baseline, 6, and 12 months. Structural equation modeling and bootstrapped confidence intervals were employed to examine the direct and indirect relationships between combat exposure, suicidal ideation, and PTSD symptom severity.
Results: Results from the mediation model, in which demographic variables and non-combat trauma were included as covariates, revealed that the indirect effect of combat exposure on suicidal ideation via PTSD symptom severity was statistically significant, accounting for 64.1% of the covariance between combat exposure and suicidal ideation.
Conclusions: This study provides longitudinal evidence that the effects of combat exposure on suicidal ideation are mediated by PTSD symptom severity, suggesting the importance of targeting such symptoms in treatment to mitigate suicide risk among veterans with combat exposure.
(Published 2020. This article is a U.S. Government work and is in the public domain in the USA.)
Databáze: MEDLINE
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