@article{ref1,
title="Evolution of irritability, anger, and aggression after traumatic brain injury: identifying and predicting subgroups",
journal="Journal of neurotrauma",
year="2021",
author="Miles, Shannon and Hammond, Flora McConnell and Neumann, Dawn and Silva, Marc A. and Tang, Xinyu and Kajankova, Maria and Dillahunt-Aspillaga, Christina and Nakase-Richardson, Risa",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="The current prospective, multi-center, longitudinal cohort study examined how Veterans/Service Members (V/SM) changed in their irritability, anger, and aggression (IAA) scores from admission to discharge in post-acute rehabilitation settings. The goals were to identify trajectory subgroups, and explore if there were different predictors of the subgroups. V/SM (N=346) from 5 Veterans Affairs TBI Model Systems Polytrauma Rehabilitation Centers participated. The sample was mostly men (92%) and identified as White (69%) Black (13%), and other races (18%). Median age was 28 years, and 78% sustained a severe TBI. Staff rated IAA at admission and discharge using the Mayo-Portland Adaptability Inventory-4 item#15. Four IAA trajectory subgroups were identified: 1.) No IAA at admission or discharge (n=89, 25.72%), 2.) Resolved IAA (n=61, 17.63%), 3.) Delayed Onset IAA (n=31, 8.96%), 4.) Persistent IAA (n=165; 47.69%). Greater posttraumatic stress disorder (PTSD) symptoms were the only consistent predictor of belonging to all the subgroups who had IAA compared to the No IAA subgroup. We conclude, IAA had different trajectories after a TBI. The majority of V/SM had persistent impairment from IAA, a quarter of the sample had no impairment from IAA, followed by IAA resolving, or getting worse. <br><br>FINDINGS emphasize the importance of educating providers and family of the different ways and times IAA can manifest after TBI. Timely diagnosis and treatment of PTSD symptoms during and after rehabilitation are critical treatment targets.<p /> <p>Language: en</p>",
language="en",
issn="0897-7151",
doi="10.1089/neu.2020.7451",
url="http://dx.doi.org/10.1089/neu.2020.7451"
}