Our research aims to enhance knowledge concerning the impact of Traumatic Brain Injury (TBI), thereby informing the development of more responsive, and thus more effective, rehabilitation services. A qualitative longitudinal study will run in parallel to a population-based incidence and outcome study of TBI commencing March 2010. Interviews at 6,12 and 24 months with 50 people with TBI, and whanau/family, will identify their main concerns (given different ages at injury, disability levels, ethnicity) and explore how these change over time. In addition, strategies that individuals and whanau/family use to promote recovery/adaptation after TBI will be identified. Data will be used to enhance knowledge about the impacts of TBI on New Zealanders and those close to them; maximise the value of epidemiological data in the parent study and; extend the evidence base for improved interventions and supports to enhance health and functioning for people with TBI and their whanau/family.