Lequerica, Anthony H.Weber, EricaDijkers, Marcel P.Dams-O’Connor, KristenKolakowsky-Hayner, Stephanie A.Bell, Kathleen R.Bushnik, TamaraGoldin, YelenaHammond, Flora M.2023-06-142023-06-142020Lequerica AH, Weber E, Dijkers MP, et al. Factors associated with the remission of insomnia after traumatic brain injury: a traumatic brain injury model systems study. Brain Inj. 2020;34(2):187-194. doi:10.1080/02699052.2019.1682193https://hdl.handle.net/1805/33754Objective: To examine the factors associated with the remission of insomnia by examining a sample of individuals who had insomnia within the first two years after traumatic brain injury (TBI) and assessing their status at a secondary time point. Design and Methods: Secondary data analysis from a multicenter longitudinal cohort study. A sample of 40 individuals meeting inclusion criteria completed a number of self-report scales measuring sleep/wake characteristics (Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale, Insomnia Severity Index, Sleep Hygiene Index), fatigue and depression (Multidimensional Assessment of Fatigue, Patient Health Questionnaire-9), and community participation (Participation Assessment with Recombined Tools-Objective). One cohort was followed at 1 and 2 years post-injury (n = 19) while a second cohort was followed at 2 and 5 years post-injury (n = 21). Results: Remission of insomnia was noted in 60% of the sample. Those with persistent insomnia had significantly higher levels of fatigue and depression at their final follow-up and poorer sleep hygiene across both follow-up time-points. A trend toward reduced community participation among those with persistent insomnia was also found. Conclusion: Individuals with persistent post-TBI insomnia had poorer psychosocial outcomes. The chronicity of post-TBI insomnia may be associated with sleep-related behaviors that serve as perpetuating factors.en-USPublisher PolicyTraumatic brain injurySleep disturbanceInsomniaArticle