Understanding changes in aggression among U.S. army soldiers: The role of trauma exposure during deployment
Abstract: Aggression is one of the leading concerns reported by United States service members and veterans. Trauma and posttraumatic stress disorder (PTSD) symptoms have emerged as key drivers of aggression. Research to date, however, has largely overlooked the effect of aggression on increasing risk of trauma exposure and subsequent PTSD. The current study addresses this gap by examining whether (a) pre-deployment aggression predicts trauma exposure on deployment and post-deployment PTSD, (b) trauma exposure on deployment and post-deployment PTSD predict post-deployment aggression, and (c) trauma exposure on deployment and post-deployment PTSD symptoms explain changes in aggressive behavior from pre-to post-deployment. Data from the Army Study to Assess Risk and Resilience in Servicemembers (Army STARRS) Pre/Post Deployment Study (PPDS) on nationally representative sample of 8558 Active-duty Army soldiers were analyzed. Results revealed positive correlations between pre-deployment aggression (assessed via items from the Joint Mental Health Advisory Team 7), trauma exposure on deployment (assessed via items from the Deployment Stress Scale), post-deployment PTSD symptoms (assessed via items from the civilian PTSD Checklist and PTSD Checklist for DSM-5), and post-deployment aggression. Further, pre-deployment aggression predicted trauma exposure on deployment and post-deployment PTSD; trauma exposure on deployment and post-deployment PTSD predicted post-deployment aggression; and changes in aggression from pre-to post-deployment were partially mediated by trauma exposure on deployment and post-deployment PTSD symptoms. Collectively, these findings highlight the utility of identifying and addressing pre-deployment aggression in mitigating trauma exposure and later psychopathology.
Abstract: Objectives: Increasing numbers of older adults are reentering community following incarceration (i.e., reentry), yet risk of incident neurodegenerative disorders associated with reentry is unknown. Our objective was to determine association between reentry status (reentry vs never-incarcerated) and mild cognitive impairment (MCI) and/or dementia. Methods: This nationwide, longitudinal cohort study used linked Centers for Medicare & Medicaid Services and Veterans Health Administration data. Participants were aged 65 years or older who experienced reentry between October 1, 2012, and December 31, 2018, with no preincarceration MCI/dementia, compared with age-matched/sex-matched never-incarcerated veterans. MCI/dementia was defined by diagnostic codes. Fine-Gray proportional hazards models were used to examine association. Results: This study included 35,520 veterans, mean age of 70 years, and approximately 1% women. The reentry group (N = 5,920) had higher incidence of MCI/dementia compared with the never-incarcerated group (N = 29,600; 10.2% vs 7.2%; fully adjusted hazard ratio [aHR] 1.12; 95% CI 1.00-1.25). On further investigation, reentry was associated with increased risk of dementia with or without prior MCI diagnosis (aHR 1.21; 95% CI 1.06-1.39) but not MCI only. Discussion: Transition from incarceration to community increased risk of neurocognitive diagnosis. Findings indicate health/social services to identify and address significant cognitive deficits on late-life reentry. Limitations include generalizability to nonveterans.