Use of the King's Outcome Scale for Childhood Head Injury in the evaluation of outcome in childhood traumatic brain injury.

Objective: To examine the inter-rater reliability of The King's Outcome Scale for Childhood Head Injury (KOSCHI) with clinicians of varying experience in paediatric traumatic brain injury (TBI); and to examine change in outcome during long-term follow-up of children following traumatic brain injury (TBI) using KOSCHI.

Method: Retrospective assessment of detailed clinic reports of 97 children followed-up by a tertiary specialist paediatric brain injury service. Investigators were blinded to each other's scores.