Risk of Adverse Outcomes Among Veterans Who Screen Positive for Traumatic Brain Injury in the Veterans Health Administration But Do Not Complete a Comprehensive Evaluation: A LIMBIC-CENC Study

OBJECTIVE

To examine whether post-9/11 veterans who screened positive for mild traumatic brain injury (mTBI) but did not complete a Comprehensive TBI Evaluation (CTBIE) were at higher risk of subsequent adverse events compared with veterans who screened positive and completed a CTBIE. Upon CTBIE completion, information assessed by a trained TBI clinician indicates whether there is mTBI history (mTBI+) or not (mTBI-).

SETTING

Veterans Health Administration (VHA) outpatient services.

PARTICIPANTS

A total of 52 700 post-9/11 veterans who screened positive for TBI were included. The follow-up review period was between fiscal years 2008 and 2019. The 3 groups studied based on CTBIE completion and mTBI status were: (1) mTBI+ (48.6%), (2) mTBI- (17.8%), and (3) no CTBIE (33.7%).

DESIGN

This was a retrospective cohort study. Log binomial and Poisson regression models adjusting for demographic, military, pre-TBI screening health, and VHA covariates examined risk ratios of incident outcomes based on CTBIE completion and mTBI status.

MAIN MEASURES

Incident substance use disorders (SUDs), alcohol use disorder (AUD), opioid use disorder (OUD), overdose, and homelessness documented in VHA administrative records, and mortality as documented in the National Death Index, 3 years post-TBI screen. VHA outpatient utilization was also examined.

RESULTS

Compared with the no CTBIE group, the mTBI+ group had 1.28 to 1.31 times the risk of incident SUD, AUD, and overdose, but 0.73 times the risk of death 3 years following TBI screening. The mTBI- group had 0.70 times the risk of OUD compared with the no CTBIE group within the same period. The no CTBIE group also had the lowest VHA utilization.

CONCLUSIONS

There were mixed findings on risk of adverse events for the no CTBIE group relative to the mTBI+ and mTBI- groups. Future research is needed to explore the observed differences, including health conditions and healthcare utilization, documented outside VHA among veterans who screen positive for TBI.

Prevalence and Correlates of VA-Purchased Community Care Use Among Post-9/11-Era Veterans With Traumatic Brain Injury

OBJECTIVE

Post-9/11-era veterans with traumatic brain injury (TBI) have greater health-related complexity than veterans overall, and may require coordinated care from TBI specialists such as those within the Department of Veterans Affairs (VA) healthcare system. With passage of the Choice and MISSION Acts, more veterans are using VA-purchased care delivered by community providers who may lack TBI training. We explored prevalence and correlates of VA-purchased care use among post-9/11 veterans with TBI.

SETTING

Nationwide VA-purchased care from 2016 through 2019.

PARTICIPANTS

Post-9/11-era veterans with clinician-confirmed TBI based on VA's Comprehensive TBI Evaluation (N = 65 144).

DESIGN

This was a retrospective, observational study.

MAIN MEASURES

Proportions of veterans who used VA-purchased care and both VA-purchased and VA-delivered outpatient care, overall and by study year. We employed multivariable logistic regression to assess associations between veterans' sociodemographic, military history, and clinical characteristics and their likelihood of using VA-purchased care from 2016 through 2019.

RESULTS

Overall, 51% of veterans with TBI used VA-purchased care during the study period. Nearly all who used VA-purchased care (99%) also used VA-delivered outpatient care. Veterans' sociodemographic, military, and clinical characteristics were associated with their likelihood of using VA-purchased care. Notably, in adjusted analyses, veterans with moderate/severe TBI (vs mild), those with higher health risk scores, and those diagnosed with posttraumatic stress disorder, depression, anxiety, substance use disorders, or pain-related conditions had increased odds of using VA-purchased care. Additionally, those flagged as high risk for suicide also had higher odds of VA-purchased care use.

CONCLUSIONS

Veterans with TBI with greater health-related complexity were more likely to use VA-purchased care than their less complex counterparts. The risks of potential care fragmentation across providers versus the benefits of increased access to care are unknown. Research is needed to examine health and functional outcomes among these veterans.

Cannabis use disorder contributes to cognitive dysfunction in Veterans with traumatic brain injury

Background

While emerging evidence supports a link between traumatic brain injury (TBI) and progressive cognitive dysfunction in Veterans, there is insufficient information on the impact of cannabis use disorder (CUD) on long-term cognitive disorders. This study aimed to examine the incidences of cognitive disorders in Veterans with TBI and CUD and to evaluate their relationship.

Methods

This retrospective cohort study used the US Department of Veterans Affairs and Department of Defense administrative data from the Long-term Impact of Military-Relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium Phenotype study. Diagnoses suggesting cognitive disorders after a TBI index date were identified using inpatient and outpatient data from 2003 to 2022. We compared the differential cognitive disorders incidence in Veterans who had the following: (1) no CUD or TBI (control group), (2) CUD only, (3) TBI only, and (4) comorbid CUD+TBI. Kaplan-Meier analyses were used to estimate the overall cognitive disorders incidence in the above study groups. The crude and adjusted Cox proportional hazards models were used to estimate crude and adjusted hazard ratios (HRs) for cognitive disorders.

Results

A total of 1,560,556 Veterans [82.32% male, median (IQR) age at the time of TBI, 34.51 (11.29) years, and 61.35% white] were evaluated. The cognitive disorder incidence rates were estimated as 0.68 (95% CI, 0.62, 0.75) for CUD only and 1.03 (95% CI, 1.00, 1.06) for TBI only per 10,000 person-months of observations, with the highest estimated cognitive disorder incidence observed in participants with both TBI and CUD [1.83 (95% CI, 1.72, 1.95)]. Relative to the control group, the highest hazard of cognitive disorders was observed in Veterans with CUD+TBI [hazard ratio (HR), 3.26; 95% CI, 2.91, 3.65], followed by those with TBI only (2.32; 95 CI%, 2.13, 2.53) and with CUD (1.79; 95 CI%, 1.60, 2.00). Of note, in the CUD only subgroup, we also observed the highest risk of an early onset cognitive disorder other than Alzheimer's disease and Frontotemporal dementia.

Discussion

The results of this analysis suggest that individuals with comorbid TBI and CUD may be at increased risk for early onset cognitive disorders, including dementia.

The economic impact of cannabis use disorder and dementia diagnosis in veterans diagnosed with traumatic brain injury

Background

Studies have demonstrated that individuals diagnosed with traumatic brain injury (TBI) frequently use medical and recreational cannabis to treat persistent symptoms of TBI, such as chronic pain and sleep disturbances, which can lead to cannabis use disorder (CUD). We aimed to determine the Veterans Health Administration (VHA) healthcare utilization and costs associated with CUD and dementia diagnosis in veterans with TBI.

Methods

This observational study used administrative datasets from the population of post-9/11 veterans from the Long-term Impact of Military-Relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium and the VA Data Warehouse. We compared the differential VHA costs among the following cohorts of veterans: (1) No dementia diagnosis and No CUD group, (2) Dementia diagnosis only (Dementia only), (3) CUD only, and (4) comorbid dementia diagnosis and CUD (Dementia and CUD). Generalized estimating equations and negative binomial regression models were used to estimate total annual costs (inflation-adjusted) and the incidence rate of healthcare utilization, respectively, by dementia diagnosis and CUD status.

Results

Data from 387,770 veterans with TBI (88.4% men; median [interquartile range (IQR)] age at the time of TBI: 30 [14] years; 63.5% white) were followed from 2000 to 2020. Overall, we observed a trend of gradually increasing healthcare costs 5 years after TBI onset. Interestingly, in this cohort of veterans within 5 years of TBI, we observed substantial healthcare costs in the Dementia only group (peak = $46,808) that were not observed in the CUD and dementia group. Relative to those without either condition, the annual total VHA costs were $3,368 higher in the CUD only group, while no significant differences were observed in the Dementia only and Dementia and CUD groups.

Discussion

The findings suggest that those in the Dementia only group might be getting their healthcare needs met more quickly and within 5 years of TBI diagnosis, whereas veterans in the Dementia and CUD group are not receiving early care, resulting in higher long-term healthcare costs. Further investigations should examine what impact the timing of dementia and CUD diagnoses have on specific categories of inpatient and outpatient care in VA and community care facilities.

Mild traumatic brain injury, PTSD symptom severity, and behavioral dyscontrol: a LIMBIC-CENC study

Background

Behavioral dyscontrol occurs commonly in the general population and in United States service members and Veterans (SM/V). This condition merits special attention in SM/V, particularly in the aftermath of deployments. Military deployments frequently give rise to posttraumatic stress disorder (PTSD) and deployment-related mild TBI traumatic brain injury (TBI), potentially leading to manifestations of behavioral dyscontrol.

Objective

Examine associations among PTSD symptom severity, deployment-related mild traumatic brain injury, and behavioral dyscontrol among SM/V.

Design

Secondary cross-sectional data analysis from the Long-Term Impact of Military-Relevant Brain Injury Consortium - Chronic Effects of Neurotrauma Consortium prospective longitudinal study among SM/V (N = 1,808).

Methods

Univariable and multivariable linear regression models assessed the association and interaction effects between PTSD symptom severity, as assessed by the PTSD Checklist for the Diagnostic and Statistical Manual, 5th edition (PCL-5), and deployment-related mild TBI on behavioral dyscontrol, adjusting for demographics, pain, social support, resilience, and general self-efficacy.

Results

Among the 1,808 individuals in our sample, PTSD symptom severity (B = 0.23, 95% CI: 0.22, 0.25, p < 0.001) and deployment-related mild TBI (B = 3.27, 95% CI: 2.63, 3.90, p < 0.001) were significantly associated with behavioral dyscontrol in univariable analysis. Interaction effects were significant between PTSD symptom severity and deployment mild TBI (B = -0.03, 95% CI: -0.06, -0.01, p = 0.029) in multivariable analysis, indicating that the effect of mild TBI on behavioral dyscontrol is no longer significant among those with a PCL-5 score > 22.96.

Conclusion

Results indicated an association between PTSD symptom severity, deployment-related mild TBI, and behavioral dyscontrol among SM/V. Notably, the effect of deployment-related mild TBI was pronounced for individuals with lower PTSD symptom severity. Higher social support scores were associated with lower dyscontrol, emphasizing the potential for social support to be a protective factor. General self-efficacy was also associated with reduced behavioral dyscontrol.

Associations Between Sociodemographic, Mental Health, and Mild Traumatic Brain Injury Characteristics With Lifetime History of Criminal Justice Involvement in Combat Veterans and Service Members

INTRODUCTION

Veterans and service members (V/SM) may have more risk factors for arrest and felony incarceration (e.g., posttraumatic stress disorder and at-risk substance use) but also more protective factors (e.g., access to health care) to mitigate behaviors that may lead to arrest. As such, understanding which factors are associated with criminal justice involvement among V/SM could inform prevention and treatment efforts. The current study examined relationships between lifetime history of arrests and felony incarceration and sociodemographic, psychological, and brain injury characteristics factors among combat V/SM.

MATERIALS AND METHODS

The current study was a secondary data analysis from the Chronic Effects of Neurotrauma Consortium multicenter cohort study, approved by local institutional review boards at each study site. Participants were V/SM (N = 1,540) with combat exposure (19% active duty at time of enrollment) who were recruited from eight Department of Veterans Affairs and DoD medical centers and completed a baseline assessment. Participants were predominantly male (87%) and white (72%), with a mean age of 40 years (SD = 9.7). Most (81%) reported a history of at least one mild traumatic brain injury, with one-third of those experiencing three or more mild traumatic brain injuries (33%). Participants completed a self-report measure of lifetime arrest and felony incarceration history, a structured interview for all potential concussive events, the post-traumatic stress disorder checklist for Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), and the Alcohol Use Disorders Identification Test-Consumption. Three groups were compared on self-reported level of lifetime history of criminal justice system involvement: (1) no history of arrest or incarceration (65%); (2) history of arrest but no felony incarceration (32%); and (3) history of felony incarceration (3%).

RESULTS

Ordinal regression analyses revealed that hazardous alcohol consumption (β = .44, P < .001; odds ratio = 1.56) was positively associated with increased criminal justice involvement after adjusting for all other variables. Being married or partnered (β = -.44, P < .001; odds ratio = 0.64) was negatively associated with decreased criminal justice involvement.

CONCLUSIONS

The rate of lifetime arrest (35%) in this V/SM sample was consistent with rates of arrests in the U.S. general population. One modifiable characteristic associated with lifetime arrest and felony incarceration was hazardous alcohol consumption. Alcohol use should be a top treatment target for V/SM at risk for arrest and those with history of criminal justice involvement.

Intentional Self-Harm Among US Veterans With Traumatic Brain Injury or Posttraumatic Stress Disorder: Retrospective Cohort Study From 2008 to 2017

BACKGROUND

Veterans with a history of traumatic brain injury (TBI) and/or posttraumatic stress disorder (PTSD) may be at increased risk of suicide attempts and other forms of intentional self-harm as compared to veterans without TBI or PTSD.

OBJECTIVE

Using administrative data from the US Veterans Health Administration (VHA), we studied associations between TBI and PTSD diagnoses, and subsequent diagnoses of intentional self-harm among US veterans who used VHA health care between 2008 and 2017.

METHODS

All veterans with encounters or hospitalizations for intentional self-harm were assigned "index dates" corresponding to the date of the first related visit; among those without intentional self-harm, we randomly selected a date from among the veteran's health care encounters to match the distribution of case index dates over the 10-year period. We then examined the prevalence of TBI and PTSD diagnoses within the 5-year period prior to veterans' index dates. TBI, PTSD, and intentional self-harm were identified using International Classification of Diseases diagnosis and external cause of injury codes from inpatient and outpatient VHA encounters. We stratified analyses by veterans' average yearly VHA utilization in the 5-year period before their index date (low, medium, or high). Variations in prevalence and odds of intentional self-harm diagnoses were compared by veterans' prior TBI and PTSD diagnosis status (TBI only, PTSD only, and comorbid TBI/PTSD) for each VHA utilization stratum. Multivariable models adjusted for age, sex, race, ethnicity, marital status, Department of Veterans Affairs service-connection status, and Charlson Comorbidity Index scores.

RESULTS

About 6.7 million veterans with at least two VHA visits in the 5-year period before their index dates were included in the analyses; 86,644 had at least one intentional self-harm diagnosis during the study period. During the periods prior to veterans' index dates, 93,866 were diagnosed with TBI only; 892,420 with PTSD only; and 102,549 with comorbid TBI/PTSD. Across all three VHA utilization strata, the prevalence of intentional self-harm diagnoses was higher among veterans diagnosed with TBI, PTSD, or TBI/PTSD than among veterans with neither diagnosis. The observed difference was most pronounced among veterans in the high VHA utilization stratum. The prevalence of intentional self-harm was six times higher among those with comorbid TBI/PTSD (6778/58,295, 11.63%) than among veterans with neither TBI nor PTSD (21,979/1,144,991, 1.92%). Adjusted odds ratios suggested that, after accounting for potential confounders, veterans with TBI, PTSD, or comorbid TBI/PTSD had higher odds of self-harm compared to veterans without these diagnoses. Among veterans with high VHA utilization, those with comorbid TBI/PTSD were 4.26 (95% CI 4.15-4.38) times more likely to receive diagnoses for intentional self-harm than veterans with neither diagnosis. This pattern was similar for veterans with low and medium VHA utilization.

CONCLUSIONS

Veterans with TBI and/or PTSD diagnoses, compared to those with neither diagnosis, were substantially more likely to be subsequently diagnosed with intentional self-harm between 2008 and 2017. These associations were most pronounced among veterans who used VHA health care most frequently. These findings suggest a need for suicide prevention efforts targeted at veterans with these diagnoses.

Can mild traumatic brain injury alter cognition chronically? A LIMBIC-CENC multicenter study

OBJECTIVE

While outcome from mild traumatic brain injury (mTBI) is generally favorable, concern remains over potential negative long-term effects, including impaired cognition. This study examined the link between cognitive performance and remote mTBIs within the Long-term Impact of Military-relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium (LIMBIC-CENC) multicenter, observational study of Veterans and service members (SMs) with combat exposure.

METHOD

Baseline data of the participants passing all cognitive performance validity tests (n = 1,310) were used to conduct a cross-sectional analysis. Using multivariable regression models that adjusted for covariates, including age and estimated preexposure intellectual function, positive mTBI history groups, 1-2 lifetime mTBIs (nonrepetitive, n = 614), and 3 + lifetime mTBIs (repetitive; n = 440) were compared to TBI negative controls (n = 256) on each of the seven cognitive domains computed by averaging Z scores of prespecified component tests. Significance levels were adjusted for multiple comparisons.

RESULTS

Neither of the mTBI positive groups differed from the mTBI negative control group on any of the cognitive domains in multivariable analyses. Findings were also consistently negative across sensitivity analyses (e.g., mTBIs as a continuous variable, number of blast-related mTBIs, or years since the first and last mTBI).

CONCLUSIONS

Our findings demonstrate that the average veteran or SM who experienced one or more mTBIs does not have postacute objective cognitive deficits due to mTBIs alone. A holistic health care approach including comorbidity assessment is indicated for patients reporting chronic cognitive difficulties after mTBI(s), and strategies for addressing misattribution may be beneficial. Future study is recommended with longitudinal designs to assess within-subjects decline from potential neurodegeneration. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Comparing Service Use and Costs of Individual Placement and Support With Usual Vocational Services for Veterans With PTSD

OBJECTIVE

Among veterans with posttraumatic stress disorder (PTSD), supported employment that utilizes the individual placement and support (IPS) model has resulted in consistently better employment and functional outcomes than usual vocational rehabilitation services. This study aimed to compare these two approaches in terms of health services use and associated costs.

METHODS

A secondary analysis of a multisite randomized controlled trial of 541 unemployed veterans with PTSD used archival data from electronic medical records to assess the use and costs of health services of IPS and usual care (i.e., a transitional work [TW] program) over 18 months. Comparisons were also made to an 18-month postintervention period.

RESULTS

The two study groups did not differ in number of inpatient days or in utilization or cost of high-intensity services. Annual per-person costs of health services were approximately 20% higher for IPS than for TW participants (mean difference=$4,910 per person per year, p<0.05) during the intervention period, largely driven by higher utilization and costs for vocational services in the IPS group (p<0.001). These costs declined postintervention to nonsignificant differences. The mean annual per-person vocational service cost was $6,388 for IPS and $2,549 for TW (mean difference=$3,839, p<0.001) during the intervention period.

CONCLUSIONS

In keeping with IPS’s intensive case management approach, veterans receiving IPS used more vocational services and had correspondingly higher costs than veterans receiving TW. The two groups did not differ in use or cost of other types of health services. Future research should examine whether higher short-term costs associated with IPS relative to usual care result in long-term cost savings or higher quality of life for persons with PTSD.

Association Between Traumatic Brain Injury and Subsequent Cardiovascular Disease Among Post-9/11-Era Veterans

Question

What is the association of a traumatic brain injury (TBI) with the subsequent risk of cardiovascular disease in veterans of the recent conflicts in Iraq and Afghanistan?

Findings

In this cohort study of 1 559 928 participants, TBI was associated with the development of a composite end point for cardiovascular disease (coronary artery disease, stroke, and peripheral artery disease). TBI was also associated with the individual components of this composite end point.

Meaning

Traumatic brain injury is a potentially novel risk factor for cardiovascular disease in veterans.

Importance

Traumatic brain injury (TBI) was common among US service members deployed to Iraq and Afghanistan. Although there is some evidence to suggest that TBI increases the risk of cardiovascular disease (CVD), prior reports were predominantly limited to cerebrovascular outcomes. The potential association of TBI with CVD has not been comprehensively examined in post-9/11–era veterans.

Objective

To determine the association between TBI and subsequent CVD in post-9/11–era veterans.

Design, Setting, and Participants

This was a retrospective cohort study conducted from October 1, 1999, to September 30, 2016. Participants were followed up until December 31, 2018. Included in the study were administrative data from the US Department of Veterans Affairs and the Department of Defense from the Long-term Impact of Military-Relevant Brain Injury Consortium–Chronic Effects of Neurotrauma Consortium. Participants were excluded if dates did not overlap with the study period. Data analysis was conducted between November 22, 2021, and June 28, 2022.

Exposures

History of TBI as measured by diagnosis in health care records.

Main Outcomes and Measures

Composite end point of CVD: coronary artery disease, stroke, peripheral artery disease, and cardiovascular death.

Results

Of the 2 530 875 veterans from the consortium, after exclusions, a total of 1 559 928 veterans were included in the analysis. A total of 301 169 veterans (19.3%; median [IQR] age, 27 [23-34] years; 265 217 male participants [88.1]) with a TBI history and 1 258 759 veterans (80.7%; median [IQR] age, 29 [24-39] years; 1 012 159 male participants [80.4%]) without a TBI history were included for analysis. Participants were predominately young (1 058 054 [67.8%] <35 years at index date) and male (1 277 376 [81.9%]). Compared with participants without a history of TBI, diagnoses of mild TBI (hazard ratio [HR], 1.62; 95% CI, 1.58-1.66; P < .001), moderate to severe TBI (HR, 2.63; 95% CI, 2.51-2.76; P < .001), and penetrating TBI (HR, 4.60; 95% CI, 4.26-4.96; P < .001) were associated with CVD in adjusted models. In analyses of secondary outcomes, all severities of TBI were associated with the individual components of the composite outcome except penetrating TBI and CVD death.

Conclusions and Relevance

Results of this cohort study suggest that US veterans with a TBI history were more likely to develop CVD compared with veterans without a TBI history. Given the relatively young age of the cohort, these results suggest that there may be an increased burden of CVD as these veterans age and develop other CVD risk factors. Future studies are needed to determine if the increased risk associated with TBI is modifiable.

Associations Among PTSD and Postconcussive Symptoms in the Long-Term Impact of Military-Relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium Prospective, Longitudinal Study Cohort

OBJECTIVE

To describe rates of mild traumatic brain injury (mTBI) with and without concurrent posttraumatic stress disorder a sample of former and current military personnel, and to compare the factor structure of the Neurobehavioral Symptom Inventory (NSI) based on whether participants sustained mTBI with and without a positive posttraumatic stress disorder (PTSD) screen.

SETTING

Participants recruited and tested at 7 Veterans Affairs (VA) sites and 1 military training facility as part of a national, longitudinal study of mental health, physical, and cognitive outcomes among veterans and service members. Participants: Total of 1540 former and current military personnel with a history of combat exposure.

DESIGN

Cross-sectional analysis of observational data, including confirmatory factor analysis. Main Measures: NSI and PTSD Checklist for DSM-5 (PCL-5).

RESULTS

Most participants (81.5%) had a history of mTBI and almost half of these screened positive for PTSD (40.5%); only 23.9% of participants without a history of mTBI screened positive for PTSD. Participants with a history of mTBI reported higher elevations of NSI and PCL-5 symptoms compared with those without a history of mTBI. Confirmatory factor analyses of the NSI demonstrated good model fit using a 4-factor structure (somatosensory, affective, cognitive, and vestibular symptoms) among groups of participants both with and without a history of mTBI.

CONCLUSION

Symptoms of mTBI and PTSD are strongly associated with each other among veterans and service members with a history of combat exposure. The 4-factor NSI structure is supported among participants with and without a history of mTBI. These findings suggest the potential benefit of a holistic approach to evaluation and treatment of veterans and service members with concurrent and elevated postconcussive and posttraumatic stress symptoms.

Cost-Effectiveness of Individual Placement and Support Compared to Transitional Work Program for Veterans with Post-traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) leads to significant disability, unemployment, and substantial healthcare costs. The cost-effectiveness of vocational rehabilitation (VR) interventions is important to consider when determining which services to offer. This study assesses the cost-effectiveness and return on investment of Individual Placement and Support (IPS) compared to transitional work (TW) programs. Employment outcomes from a multisite randomized trial comparing IPS to TW in military veterans with PTSD (n = 541) were linked to Veterans Health Administration (VHA) archival medical record databases to examine the comparative cost-effectiveness and return on investment. Effectiveness was defined as hours worked and income earned in competitive jobs. Costs for VR, mental health, and medical care and income earned from competitive sources were annualized and adjusted to 2019 US dollars. The annualized mean cost per person of outpatient (including vocational services) were $3970 higher for IPS compared to TW ($23,245 vs. $19,276, respectively; P = 0.004). When TW income was included in costs, mean grand total costs per person per year were similar between groups ($29,828 IPS vs. $26,772 TW; P = 0.17). The incremental cost-effectiveness analysis showed that while IPS is more costly, it is also more effective. The return on investment (excluding TW income) was 32.9% for IPS ($9762 mean income/$29,691 mean total costs) and 29.6% for TW ($7326 mean income/$24,781 mean total costs). IPS significantly improves employment outcomes for individuals with PTSD with negligible increase in healthcare costs and yields very good return on investment compared to non-IPS VR services.

Association of Traumatic Brain Injury With Vestibular Dysfunction and Dizziness in Post-9/11 Veterans

OBJECTIVE

To describe the prevalence and impact of vestibular dysfunction and nonspecific dizziness diagnoses and explore their associations with traumatic brain injury (TBI) severity, mechanism, and postconcussive comorbidities among post-9/11 veterans.

SETTING

Administrative medical record data from the US Departments of Defense and Veterans Affairs (VA).

PARTICIPANTS

Post-9/11 veterans with at least 3 years of VA care.

DESIGN

Cross-sectional, retrospective, observational study.

MAIN MEASURES

International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis codes for TBI, vestibular dysfunction, dizziness, and other commonly associated postconcussive conditions; Neurobehavioral Symptom Inventory.

RESULTS

Of the 570 248 post-9/11 veterans in this sample, 0.45% had a diagnosis of vestibular dysfunction and 2.57% had nonspecific dizziness. Those with either condition were more likely to have evidence of TBI (57.11% vs 28.51%) and reported more disruption from neurobehavioral symptoms. Blast and nonblast injuries were associated with greater symptom disruption, particularly in combination.

CONCLUSIONS

There was a consistent, significant association between TBI and vestibular dysfunction or nonspecific dizziness, after controlling for sociodemographic factors, injury mechanism, and comorbid conditions. Given that most deployed post-9/11 veterans report blast and/or nonblast injuries, the need for prompt identification and management of these conditions and symptoms is clear.

Ethnicity/race and service-connected disability disparities in civilian traumatic brain injury mechanism of injury and VHA health services costs in military veterans: Evidence from a Level 1 Trauma Center and VA Medical Center

Introduction

The objective of this study was to examine the association of military veteran socio-demographics and service-connected disability with civilian mechanism of traumatic brain injury and long-term Veterans Health Administration (VHA) costs.

Methods

We conducted a 17-year retrospective longitudinal cohort study of veterans with a civilian-related traumatic brain injury from a Level 1 Trauma Center between 1999 and 2013, with VHA follow-up through 2016. We merged trauma center VHA data, and used logit to model mechanism of injury, and generalized linear model to model VHA costs.

Results

African American race or Hispanic ethnicity veterans had a higher unadjusted rate of civilian assault/gun as mechanism of injury (15.38%) relative to non-Hispanic White (7.19%). African American race or Hispanic veterans who were discharged from the trauma center with traumatic brain injury and followed in VHA had more than twice the odds of assault/gun (OR 2.47; 95% CI 1.16:5.26), after adjusting for sex, age, and military service-connected disability. Veterans with service-connected disability ≥50% had more than twice the odds of assault/gun (OR 2.48; 95% CI 0.97:6.31). Assault/gun was associated with significantly higher annual VHA costs post-discharge ($16,807; 95% CI 672:32,941) among non-Hispanic White veterans. Military service-connected disability ≥50% was associated with higher VHA costs among both non-Hispanic White ($44,987; 95% CI $17,159:$72,816) and African American race or Hispanic ($37,901; 95% CI $4,543:$71,258) veterans.

Conclusions

We found that African American race or Hispanic veterans had higher adjusted likelihood of assault/gun mechanism of traumatic brain injury, and non-Hispanic White veterans had higher adjusted annual VHA resource costs associated with assault/gun, post trauma center discharge. Veterans with higher than 50% service-connected disability had higher likelihood of assault/gun and higher adjusted annual VHA resource costs. Assault/gun prevention efforts may be indicated within the VHA, especially in minority and service-connected disability veterans. More data from Level 1 Trauma Centers are needed to assess the generalizability of these findings.

Experiences of VA vocational and education training and assistance services: Facilitators and barriers reported by veterans with disabilities

OBJECTIVE

To understand the experiences of veterans with disabilities and caregiving needs who use Department of Veterans Affairs (VA) vocational and education services, including Supported Employment, the Post-9/11 GI Bill, and Vocational Rehabilitation and Employment.

METHOD

We conducted 26 joint semistructured interviews with post-9/11 veterans who had used at least one of three vocational and education services, and their family members who were enrolled in a VA Caregiver Support Program.

RESULTS

VA vocational and education services helped veterans with disabilities transition from the military into civilian life by providing skills and incremental exposure to engaging in everyday life tasks. Veteran motivation, caregiver support, and engaged staff at VA and academic institutions were key drivers of veteran success. Veterans who experienced challenges cited the following barriers: health problems, concerns about benefits loss if they became employed, and VA and academic programs that did not accommodate the needs of nontraditional veteran learners.

CONCLUSIONS AND IMPLICATIONS FOR PRACTICE

There is a need to bolster VA vocational and educational services for veterans with disabilities in several domains, including modifying the roles of frontline staff and increasing communication between vocational counselors and health care teams to better accommodate the veteran's health-related limitations. Providing a vocational rehabilitation navigator to help veterans identify opportunities within VA and work/educational settings that are a good match for the veteran's goals and abilities could also be beneficial across vocational and educational services. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Potential Concussive Event Narratives of Post-9/11 Combat Veterans: Chronic Effects of Neurotrauma Consortium Study

INTRODUCTION

Deployment-related mild traumatic brain injury (mTBI) affects a significant proportion of those who served in Post-9/11 combat operations. The prevalence of head injuries, including those that lead to mTBI, is often reported quantitatively. However, service member (SM) and Veteran firsthand accounts of their potential concussive events (PCEs) and mTBIs can serve as a rich resource for better understanding the nuances and context of these exposures.

MATERIALS AND METHODS

Post-9/11 SMs and Veterans with a history of combat deployment were recruited through the Chronic Effects of Neurotrauma Consortium's observational study of deployment-related mTBI. During a comprehensive assessment, participants completed the Virginia Commonwealth University retrospective Concussion Diagnostic Interview, a specialized validated interview measure which obtains detailed narratives of deployment-incurred blast and non-blast-related PCEs. Qualitative thematic analysis was used to identify and code recurring themes within the narratives.

RESULTS

Among the sample of 106 SMs and Veterans, deployment-related mTBI was highly prevalent (67.0%). Over half (50.9%) of the participants identified a blast as the cause of their worst PCE, frequently with accompanying themes of self-reported acute neurological symptoms, intense physical blast forces, and tertiary head impact. Exposure to blast at close range, such as driving directly over an improvised explosive device, occurred in 24.7% of all blast-related narratives and in 59.3% of narratives where blast was identified as causing the worst PCE. Themes of potentially preventable head impacts experienced during noncombat circumstances were also frequent, accounting for 35% of all non-blast-related head injuries in the sample.

CONCLUSIONS

Prevalence of deployment-related close-range blast exposure, non-blast impact PCEs, and mTBIs among this Post-9/11 combatant sample was substantial, and in many cases potentially preventable. The use of detailed semi-structured interviews may help health care providers and policymakers to better understand the context and circumstances of deployment-related PCEs and mTBIs.

Obstructive Sleep Apnea Risk Is Associated with Cognitive Impairment after Controlling for Mild Traumatic Brain Injury History: A Chronic Effects of Neurotrauma Consortium Study

The contribution of sleep disturbance to persistent cognitive symptoms following a mild traumatic brain injury (mTBI) remains unclear. Obstructive sleep apnea (OSA) is very common, yet its relationship between risk factors for developing OSA and cognitive performance in those with history of mTBI has not been investigated. The current study examined OSA risk levels and its association with cognitive performance in 391 combat-exposed, post-911 veterans and service members (median age = 37 years) enrolled in the Chronic Effects of Neurotrauma Consortium (CENC) prospective multi-center study. Participants included those with and without mTBI (n = 326 and 65, respectively). When using clinical cut-offs, those with history of mTBI were more likely to be categorized as high risk for OSA (mTBI positive = 65% vs. mTBI negative = 51%). After adjustment for TBI status and demographic variables, increased OSA risk was significantly associated with worse performance on measures of complex processing speed and executive functioning (Wechsler Adult Intelligence Scale Fourth Edition Coding, Trail Making Test, part B) and greater symptom burden (Neurobehavioral Symptom Inventory). Thus, OSA, a modifiable behavioral health factor, likely contributes to cognitive performance following mTBI. Accordingly, OSA serves as a potential point of intervention to improve clinical and cognitive outcomes after injury.

Intimate Partner Violence Among Female OEF/OIF/OND Veterans Who Were Evaluated for Traumatic Brain Injury in the Veterans Health Administration: A Preliminary Investigation

Many female veterans have deployed to Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation New Dawn (OND), and some experience traumatic brain injury (TBI). Although TBI is increasingly recognized as an important health issue for female OEF/OIF/OND veterans, there is little attention to stressful experiences that may exacerbate health problems or hinder recovery among veterans who may have experienced TBI. Lifetime intimate partner violence (IPV) is common among general samples of female veterans. Given the negative implications of IPV on women's health, it is important to understand whether there is a relationship between lifetime IPV and health functioning among female veterans who have experienced possible TBI. This study provides an exploration of lifetime IPV and its associations with physical and mental health, as well as community reintegration, among female OEF/OIF/OND veterans who have been evaluated for TBI. The sample comprised 127 female veterans who participated in a larger study that examined reintegration among OEF/OIF/OND veterans who received a TBI evaluation in the Veterans Heath Administration (VHA) and completed an assessment of lifetime IPV. Primary and secondary data sources included survey responses (e.g., health symptoms and reintegration) and VHA administrative data (e.g., health diagnoses). Results indicated that nearly two thirds (63.0%) of women who completed a TBI evaluation reported lifetime IPV, though clinician-confirmed TBI was not associated with IPV. Women who experienced IPV, compared with those who did not, reported higher levels of neurobehavioral symptoms and were significantly more likely to have diagnoses of back pain (48.6% vs. 30.0%, respectively) and substance abuse (12.2% vs. 0%, respectively). Notwithstanding, women with and without lifetime IPV reported similar levels of reintegration. Findings provide evidence that lifetime IPV may be common among female OEF/OIF/OND veterans who are evaluated for TBI, and that IPV is associated with several treatable health problems among this population.

Leveraging institutional support for family caregivers to meet the health and vocational needs of persons with disabilities

BACKGROUND

Family caregivers might enhance veteran engagement in health and nonhealth services (i.e., vocational/educational assistance).

PURPOSE

To describe how veterans with disabilities perceive their recovery needs, identify types of social support from caregivers that help veterans engage in Veterans Affairs (VA) health and nonhealth services, and explore participant views of VA institutional support for caregivers to help veterans engage in these services.

METHODS

Joint in-depth qualitative interviews with U.S. veterans and family caregivers (n = 26).

FINDINGS

Caregivers performed social support functions that helped veterans engage in health and vocational/educational services and institutional support from VA enhanced caregivers' capacity.

DISCUSSION

Caregivers are well positioned to align health and nonhealth services with patient needs to enhance recovery. Staffing a point person for caregivers within the health system is key to help families develop a coordinated plan of treatment and services to improve patient success across health and nonhealth domains. Nurses are well suited to perform this role.

Associations between traumatic brain injury from intimate partner violence and future psychosocial health risks in women

OBJECTIVE

The effects of traumatic brain injury (TBI) incurred during military service are widely studied; however, less is known about TBI resulting from intimate partner violence ("IPV-related TBI"). Women Veterans are at high risk for IPV, yet no research has examined future psychosocial health risks associated with IPV-related TBI history in this population.

METHODS

We examined psychiatric and physical health outcomes, as well as IPV, in a sample of women Veterans who, at Time 1, reported IPV-related TBI with (n = 13) or without (n = 20) persistent symptoms; that is, symptoms such as memory problems, balance problems or dizziness, sensitivity to bright light, irritability, headaches, and sleep problems that began or got worse immediately following the IPV-related TBI and occurred within the past week. These women completed web-based surveys 18 months later (Time 2), which included validated measures of psychiatric and physical health symptoms as well as past-year IPV. We conducted linear regressions to model whether T1 IPV-related TBI with persistent symptoms predicted worse health outcomes at T2, in comparison to T1 IPV-related without persistent symptoms.

RESULTS

Controlling for significant covariates (i.e., military sexual trauma; MST), IPV-related TBI with persistent symptoms at Time 1 was associated with significantly worse outcomes at Time 2 across all health outcome domains (sr² range: 0.12-0.37). After controlling for MST and probable posttraumatic stress disorder (PTSD) at Time 1, IPV-related TBI with persistent symptoms at Time 1 remained significantly associated with worse Time 2 symptoms of insomnia, depression, and physical health (sr² range: 0.12-0.25).

CONCLUSION

Women who experience IPV-related TBI with persistent symptoms are at higher risk for worse psychosocial health outcomes 18 months later. Findings necessitate screening IPV survivors for TBI with persistent symptoms and tailoring TBI and psychosocial interventions to reduce risk for ongoing health sequelae.

Employment and vocational rehabilitation experiences among veterans with polytrauma/traumatic brain injury history

Evidence suggests that Iraq and Afghanistan war veterans with polytrauma/traumatic brain injury (TBI) history and neurobehavioral symptoms may face difficulties returning to work, yet also encounter barriers to accessing, navigating, and engaging in Department of Veterans Affairs (VA) vocational rehabilitation programs. This study utilized qualitative interviews and focus groups with veterans with documented polytrauma/TBI history to explore veterans' perceived barriers to employment and vocational rehabilitation program participation, as well as to solicit thoughts regarding interest in an evidence-based vocational rehabilitation program, the Individual Placement and Support model of Supported Employment (IPS-SE). Veterans identified physical, emotional, cognitive, and interpersonal barriers to finding and maintaining work that they described as linked with their polytrauma/TBI symptoms and sequelae. Communication and logistical issues were described as the primary barriers to vocational rehabilitation program access, while barriers to program utilization included eligibility characteristics, fear of losing financial benefits, and a military-cultural belief of self-sufficiency that made help-seeking difficult. Finally, veterans endorsed key aspects of IPS-SE, such as staff serving as translators, advocates, and navigators of the job search and maintenance process. Policy recommendations are addressed. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

Understanding the impact of mild traumatic brain injury on veteran service-connected disability: results from Chronic Effects of Neurotrauma Consortium

OBJECTIVES

Disability evaluation is complex. The association between mild traumatic brain injury (mTBI) history and VA service-connected disability (SCD) ratings can have implications for disability processes in the civilian population. We examined the association of VA SCD ratings with lifetime mTBI exposure in three models: any mTBI, total mTBI number, and blast-related mTBI.

METHODS

Participants were 492 Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn veterans from four US VA Medical Centers enrolled in the Chronic Effects of Neurotrauma Consortium study between January 2015 and August 2016. Analyses entailed standard covariate-adjusted linear regression models, accounting for demographic, military, and health-related confounders and covariates.

RESULTS

Unadjusted and adjusted results indicated lifetime mTBI was significantly associated with increased SCD, with the largest effect observed for blast-related mTBI. Every unit increase in mTBI was associated with an increase in 3.6 points of percent SCD. However, hazardous alcohol use was associated with lower SCD.

CONCLUSIONS

mTBI, especially blast related, is associated with higher VA SCD ratings, with each additional mTBI increasing percent SCD. The association of hazardous alcohol use with SCD should be investigated as it may impact veteran health services access and health outcomes. These findings have implications for civilian disability processes.

Associations Between Traumatic Brain Injury History and Future Headache Severity in Veterans: A Longitudinal Study

OBJECTIVE

To determine whether traumatic brain injury (TBI) history is associated with worse headache severity outcomes.

DESIGN

Prospective cohort study.

SETTING

Department of Veterans Affairs (VA) outpatient clinics.

PARTICIPANTS

Veterans (N=2566) who completed a mail follow-up survey an average of 3 years after a comprehensive TBI evaluation (CTBIE).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

The presence or absence of TBI, and TBI severity were evaluated by a trained clinician and classified according to VA/Department of Defense clinical practice guidelines. Headache severity was evaluated at both the baseline CTBIE assessment and 3-year follow-up using a 5-level headache score ranging from 0 ("none") to 4 ("very severe") based on headache-associated activity interference in the past 30 days. We examined associations of mild and moderate/severe TBI history, as compared to no TBI history, with headache severity in cross-sectional and longitudinal analyses, with and without adjustment for potential confounders.

RESULTS

Mean headache severity scores were 2.4 at baseline and 2.3 at 3-year follow-up. Mild TBI was associated with greater headache severity in multivariate-adjusted cross-sectional analyses (β [SE]=.61 [.07], P<.001), as compared with no TBI, but not in longitudinal analyses (β [SE]=.09 [.07], P=.20). Moderate/severe TBI was significantly associated with greater headache severity in both cross-sectional (β [SE]=.66 [.09], P<.001) and longitudinal analyses (β [SE]=.18 [.09], P=.04).

CONCLUSIONS

Headache outcomes are poor in veterans who receive VA TBI evaluations, irrespective of past TBI exposure, but significantly worse in those with a history of moderate/severe TBI. No association was found between mild TBI and future headache severity in veterans. Veterans with headache presenting for TBI evaluations, and particularly those with moderate/severe TBI, may benefit from further evaluation and treatment of headache.

Traumatic brain injury and PTSD symptoms as a consequence of intimate partner violence

OBJECTIVE

To effectively diagnose and treat women who have experienced intimate partner violence (IPV), it is important to identify the full range of physical and mental health consequences, including hidden wounds such as traumatic brain injury (TBI) and posttraumatic stress disorder (PTSD). We aimed to identify the occurrence of IPV-related TBI and associated PTSD symptoms among women veterans who experienced IPV.

METHODS

A web-based survey was administered in 2014 to a national sample of U.S. women veterans. Among 411 respondents (75% participation rate), 55% reported IPV during their lives. These participants (N=224) completed screening measures of IPV-related TBI, PTSD, and past-year IPV and comprised the current sample.

RESULTS

A total of 28.1% (n=63) met criteria for IPV-related TBI history, and 12.5% (n=28) met criteria for IPV-related TBI with current symptoms. When adjusting for race, income, and past-year IPV, women with IPV-related TBI with current symptoms were 5.9 times more likely to have probable IPV-related PTSD than those with no IPV-related TBI history. Despite symptom overlap between TBI and PTSD, women with IPV-related TBI with current symptoms were significantly more likely to meet criteria for all four DSM-5 PTSD symptom clusters compared to women with an IPV-related TBI history without current symptoms (Cramér's V's=.34-.42).

CONCLUSION

Findings suggest there may be clinical utility in screening women who experience lifetime IPV for both TBI and PTSD symptoms in order to help clinicians better target their examinations, treatment, and referrals.

The Effects of Organization Design and Patient Perceptions of Care on Switching Behavior and Reliance on a Health Care System Across Time

Sustaining ongoing relationships with patients is a strategic, clinically relevant goal of health care systems. This study develops and tests a conceptual model that aims to account for the influence of organization design, perceptions of quality of patient care, and other patient-level factors on the extent to which patients sustain reliance on a health care system. We use a longitudinal survey design and structural equation modeling to predict increases or decreases in patient reliance on the Department of Veterans Affairs health care system across a 4-year period for Veterans with Parkinson's Disease. Our findings show that specialized and integrated clinical practices have a positive association with the quality of patient care. Health care systems may be able to foster long-term relations with patients and improve service quality by allocating resources to form integrated, specialized, disease-specific centers of care designed for patients with chronic illnesses.

Diabetes Management and Its Association with Transtibial Amputation

BACKGROUND

Transtibial (TTA) and transfemoral (TFA) amputations are rarely considered as distinct events when examining major lower-limb amputation outcomes. The objective of this study was to investigate the relationships among type 2 diabetes, diabetes management strategies, hemoglobin A1c levels, and other health factors related to TTA and TFA.

METHODS

The retrospective medical record review included abstracting demographic and health-related data from the electronic medical records of 92 patients who received amputation-related services in a Department of Veterans Affairs hospital.

RESULTS

Patients who controlled their diabetes with insulin (with or without other oral agents) were significantly more likely to undergo TTA (adjusted odds ratio [aOR] = 7.63; 95% confidence interval [CI], 1.17-49.97; P = .03) compared with patients who controlled their diabetes through noninsulin medications or by diet. Patients who underwent no previous surgery (aOR = 6.66; 95% CI, 0.89-49.72; P = .06) or partial amputation only (aOR = 15.44; 95% CI, 1.04-228.29; P = .05) compared with a combination of partial amputation and bypass, thrombolectomy, or stent procedures were marginally to statistically significantly more likely to undergo TTA than TFA.

CONCLUSIONS

The preferential association between TTA with insulin-dependent diabetes and higher hemoglobin A1c levels versus TFA with previous lower-limb bypasses, stent placement, and thrombolytic interventions distinguishes TTA and TFA as two distinct entities, and awareness of this difference may help clinicians design preventive strategies accordingly.

Multisensory impairment reported by veterans with and without mild traumatic brain injury history

With the use of Veterans Health Administration and Department of Defense databases of veterans who completed a Department of Veterans Affairs comprehensive traumatic brain injury (TBI) evaluation, the objectives of this study were to (1) identify the co-occurrence of self-reported auditory, visual, and vestibular impairment, referred to as multisensory impairment (MSI), and (2) examine demographic, deployment-related, and mental health characteristics that were potentially predictive of MSI. Our sample included 13,746 veterans with either a history of deployment-related mild TBI (mTBI) (n = 9,998) or no history of TBI (n = 3,748). The percentage of MSI across the sample was 13.9%, but was 17.4% in a subsample with mTBI history that experienced both nonblast and blast injuries. The factors that were significantly predictive of reporting MSI were older age, being female, lower rank, and etiology of injury. Deployment-related mTBI history, posttraumatic stress disorder, and depression were also significantly predictive of reporting MSI, with mTBI history the most robust after adjusting for these conditions. A better comprehension of impairments incurred by deployed servicemembers is needed to fully understand the spectrum of blast and nonblast dysfunction and may allow for more targeted interventions to be developed to address these issues.

Psychiatric diagnoses and neurobehavioral symptom severity among OEF/OIF VA patients with deployment-related traumatic brain injury: a gender comparison

BACKGROUND

Traumatic brain injury (TBI) has substantial negative implications for the post-deployment adjustment of veterans who served in Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF); however, most research on veterans has focused on males. This study investigated gender differences in psychiatric diagnoses and neurobehavioral symptom severity among OEF/OIF veterans with deployment-related TBI.

METHODS

This population-based study examined psychiatric diagnoses and self-reported neurobehavioral symptom severity from administrative records for 12,605 United States OEF/OIF veterans evaluated as having deployment-related TBI. Men (n = 11,951) and women (n = 654) who were evaluated to have deployment-related TBI during a standardized comprehensive TBI evaluation in Department of Veterans Affairs facilities were compared on the presence of psychiatric diagnoses and severity of neurobehavioral symptoms.

FINDINGS

Posttraumatic stress disorder (PTSD) was the most common psychiatric condition for both genders, although women were less likely than men to have a PTSD diagnosis. In contrast, relative to men, women were 2 times more likely to have a depression diagnosis, 1.3 times more likely to have a non-PTSD anxiety disorder, and 1.5 times more likely to have PTSD with comorbid depression. Multivariate analyses indicated that blast exposure during deployment may account for some of these differences. Additionally, women reported significantly more severe symptoms across a range of neurobehavioral domains.

CONCLUSION

Although PTSD was the most common condition for both men and women, it is also critical for providers to identify and treat other conditions, especially depression and neurobehavioral symptoms, among women veterans with deployment-related TBI.

Qualitative analysis of barriers to implementation of supported employment in the Department of Veterans Affairs

OBJECTIVE

The aim of this qualitative study was to document perceived barriers to supported employment implementation as described by Department of Veterans Affairs (VA) employees.

METHODS

Interviews were conducted over two years at six VA medical centers involved in implementing supported employment, an evidence-based practice for helping people with serious mental illness obtain competitive employment. Eighty-four unique semistructured interviews focusing on program development were conducted at the two time points with 110 VA leaders, clinicians, and supported employment staff. A qualitative analysis was performed by using a hybrid of a priori coding categories (focused on organizational transformation) and a data-driven approach to examining perceived barriers to supported employment implementation.

RESULTS

Perceived barriers to supported employment implementation were most prominent during the first year of interviews. VA employees across the six sites reported challenges related to employees having paternalistic attitudes about individuals with serious mental illness and being uninformed about the supported employment program. They also reported a lack of organizational structures and leadership to educate providers, facilitate program integration with other teams, and promote the program's value. By the second year, most sites had addressed these challenges.

CONCLUSIONS

Paternalistic-uninformed concerns about the ability of persons with serious mental illness to be gainfully employed and a lack of organizational structures and leadership to promote and integrate the supported employment program were common implementation barriers. During implementation, organizations would likely benefit from a formalized educational process of teams involved in the care of supported employment clients and from leadership buy-in to the program and promotion of its significance.

Dual sensory impairment (DSI) in traumatic brain injury (TBI)--An emerging interdisciplinary challenge

The present review characterizes dual sensory impairment (DSI) as co-existing auditory and visual deficits in TBI that can be peripherally or centrally based. Current research investigating DSI in the military population, along with applicable research which focuses on unimodal deficits, is considered. Due to the heterogenous nature of TBI lesions, an important challenge that the clinician faces is ruling out the influence of multiple sensory deficits and/or the influence of cognitive processes on diagnosis and rehabilitation of the patient. Treatment options for DSI involve remediation of the sensory deficits via existing sensory aids or training exercises.

Auditory and visual impairments in patients with blast-related traumatic brain injury: Effect of dual sensory impairment on Functional Independence Measure

The frequencies of hearing impairment (HI), vision impairment (VI), or dual (hearing and vision) sensory impairment (DSI) in patients with blast-related traumatic brain injury (TBI) and their effects on functional recovery are not well documented. In this preliminary study of 175 patients admitted to a Polytrauma Rehabilitation Center, we completed hearing and vision examinations and obtained Functional Independence Measure (FIM) scores at admission and discharge for 62 patients with blast-related TBI. We diagnosed HI only, VI only, and DSI in 19%, 34%, and 32% of patients, respectively. Only 15% of the patients had no sensory impairment in either auditory or visual modality. An analysis of variance showed a group difference for the total and motor FIM scores at discharge (p < 0.04). Regression model analyses demonstrated that DSI significantly contributed to reduced gain in total ( t = -2.25) and motor ( t = -2.50) FIM scores ( p < 0.05). Understanding the long-term consequences of sensory impairments in the functional recovery of patients with blast-related TBI requires further research.