L French, R Lange, S Lippa, J Bailie, T Brickell; B-28 Base Rates and Longitudinal Trajectories of Individual Self-reported Postconcussion Symptoms from 1- to 2-Years Following Military-Related Mild-Moderate Traumatic Brain Injury: Part 2 of 2. Arch Clin Neuropsychol 2016; 31 (6): 623. doi: 10.1093/arclin/acw043.103
Objective: The purpose of this study was to examine the base rates and longitudinal trajectory of individual self-reported postconcussion symptoms from 1-year to 2-years following injury in military service members with and without traumatic brain injury (TBI). Method: Participants were 57 U.S. military service members (Age: M = 31.7, SD = 8.2; 90.7% male) enrolled in a prospective 15-year longitudinal study. Participants included 42 service members who had sustained a mild-moderate TBI and 15 injured controls without TBI (i.e., Trauma Controls [TC]) who had completed the Neurobehavioral Symptom Inventory (NSI) at 1-year (M = 12.7 months, SD = 2.4) and 2-years (M = 23.8 months, SD = 0.5) post-injury. Results: The TBI group reported a significantly higher number of NSI symptoms compared to the TC group at Year 1 (p = .045, d = .67) and Year 2 post-injury (p = .008, d = .88). In the TBI group, the...
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B-28 Base Rates and Longitudinal Trajectories of Individual Self-reported Postconcussion Symptoms from 1- to 2-Years Following Military-Related Mild-Moderate Traumatic Brain Injury: Part 2 of 2 - 24 Hours access