Race/Ethnicity and Retention in Traumatic Brain Injury Outcomes Research: A Traumatic Brain Injury Model Systems National Database Study

Objective:To investigate the contribution of race/ethnicity to retention in traumatic brain injury (TBI) research at 1 to 2 years postinjury.Setting:Community.Participants:With dates of injury between October 1, 2002, and March 31, 2013, 5548 whites, 1347 blacks, and 790 Hispanics enrolled in the Tr