LAUSR

Key Points Question What is the natural history of insomnia in the 12 months after traumatic brain injury (TBI)? Findings In this analysis of 2022 adults from the large cohort study Transforming Research and Clinical Knowledge in Traumatic Brain Injury, insomnia was common during the 12 months after TBI. Five trajectory classes of insomnia were identified, and baseline factors including sex, race and ethnicity, history of TBI, psychiatric history, and computed tomography status were identified as significantly associated with insomnia trajectory class membership. Meaning These findings suggest that insomnia is common after TBI and should be assessed early in recovery.