Journal of psychosomatic research
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Sleep disturbance crosscuts post-traumatic stress disorder (PTSD) and traumatic brain injury (TBI). Though previous cross-sectional findings demonstrate a compounding effect of PTSD and TBI comorbidity, relatively little is known about the longitudinal trajectory of sleep-related complaints in veterans with TBI history and current PTSD symptoms. In this study, we explored patterns and predictors of sleep complaints in a sample of combat veterans with and without TBI and PTSD. ⋯ Whereas changes in PTSD symptoms over time were associated with worsening sleep symptoms, improvement in sleep reports was most consistently predicted by the passage of time. Our data also provide preliminary support for using three-to-four core items (i.e., trouble sleeping, changes in sleep, fatigue, and nightmares) to screen for sleep complaints in veterans with TBI and PTSD and/or track sleep-related outcomes.