The primary objective of this project is to capitalize on a variety of existing data sources by integrating and analyzing them in novel ways to answer key questions related to the chronic effects of mild traumatic brain injury (mTBI) in Veterans over time. Although prior studies have found that moderate and severe TBI are associated with a variety of adverse clinical outcomes, the effects of mTBI are less well understood. We propose to address this gap in knowledge through four complimentary Specific Aims.
In Aim 1, we propose to examine the association between mTBI and important shorter-term clinical outcomes such as accidents and injuries in Veterans from recent conflicts in Iraq and Afghanistan, focusing on identifying factors associated with resilience and the potential benefits of adequate treatment.
In Aim 2, we propose to expand these analyses to include Veterans from all eras and to study longer-term clinical outcomes including neurosensory disorders and mortality, focusing on the potential confounding effects of comorbid medical conditions and the impact of their treatment.
In Aim 3, we propose to identify different trajectories of mTBI-related comorbid burden, with the goal of identifying factors associated with being in low and high distress trajectories. Finally, in Aim 4, we propose to lay the groundwork for future analyses using more detailed and unified mTBI data by developing the groundwork to create a National CENC Data Repository (NCDR). Together, these Aims will advance our knowledge of the effects of mTBI on important clinical outcomes in Veterans of all ages and eras in a highly efficient manner and will provide insight into potential strategies for prevention and intervention.

Public Health Relevance

It is estimated that up to 20% of young Veterans have had a traumatic brain injury (TBI), yet little is known about the impact of TBI over the long term. There have also been no large-scale studies to evaluate whether VA mental health and rehabilitative treatment helps decrease adverse clinical outcomes in combat Veterans. This project aims to address these gaps in knowledge by studying the effects of TBI on neurodegenerative disease and other comorbidities and the methods to treat and rehabilitate adverse effects of mTBI. This line of investigation is vital not only to anticipate and plan for individual, VA, and U.S. public health burden from military-service related problems, but also to inform VA and other healthcare systems about how to best use resources and target interventions to improve the care of Veterans and to reduce the risk of long-term consequences.

Agency
National Institute of Health (NIH)
Institute
Veterans Affairs (VA)
Type
Non-HHS Research Projects (I01)
Project #
5I01CX001246-03
Application #
9278103
Study Section
VA-DoD Consortium Projects - CENC (SPLF)
Project Start
2015-02-01
Project End
2018-01-31
Budget Start
2017-02-01
Budget End
2018-01-31
Support Year
3
Fiscal Year
2017
Total Cost
Indirect Cost
Name
Veterans Affairs Medical Center San Francisco
Department
Type
DUNS #
078763885
City
San Francisco
State
CA
Country
United States
Zip Code
94121
Peltz, Carrie B; Gardner, Raquel C; Kenney, Kimbra et al. (2017) Neurobehavioral Characteristics of Older Veterans With Remote Traumatic Brain Injury. J Head Trauma Rehabil 32:E8-E15
Cifu, David X; Diaz-Arrastia, Ramon; Williams, Rick L et al. (2015) The VA/DoD Chronic Effects of Neurotrauma Consortium: An Overview at Year 1. Fed Pract 32:44-48