This study uses a contemporary population- based longitudinal study (ALSPAC) to

investigate the outcome of mild traumatic brain injury (TBI) in children, in terms of

executive function, emotional/behavioural status and Health Related Quality of Life.

Outcomes of mild TBI will be assessed at 12 and at 16-17 years and compared with:

(i)age-matched participants who sustained severe or moderate TBI in childhood;

(ii) age-matched participants who sustained an orthopaedic injury in childhood but not a TBI; iii) age-matched participants who did not sustain TBI or orthopaedic injury in childhood.

Cognitive, psychological and behavioural measures collected pre and post injury will be

compared, and the influence of familial and environmental factors on outcome will be

assessed. The results will answer the question whether mild head injury has long term

impacts, and inform rehabilitation approaches.