title: Long-term behavioural outcomes of pre-school mild traumatic brain injury.
abstract: Abstract Background Mild traumatic brain injury (MTBI) is a leading cause of injury for children during their pre-school years. However, there is little information regarding the long-term outcomes of these injuries. Method We used fully prospective data from an epidemiological study of a birth cohort to examine behavioural effects associated with MTBI during the pre-school years. Cases of confirmed MTBI were divided into two groups, those that had received outpatient medical attention, and those that had been admitted to hospital for a brief period of observation (inpatient cases). The remainder of the cohort served as a reference control group. Results Mother/teacher ratings for behaviours associated with attention deficit/hyperactivity disorder and oppositional defiant/conduct disorder, obtained yearly from age 7 to 13, revealed evidence of deficits after inpatient MTBI (n = 21), relative to more minor outpatient injury MTBI (n = 55) and the reference control group (n = 852). For the inpatient group there was evidence of increasing deficits over years 7-13. Conclusions More severe pre-school MTBI may be associated with persistent negative effects in terms of psychosocial development. The vulnerability of pre-school children to MTBI signals a pressing need to identify high-risk cases that may benefit from monitoring and early intervention.
authors.affiliation: Department of Psychology, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. audrey.mckinlay@canterbury.ac.nz
authors.forename: A
authors.initials: A
authors.lastname: McKinlay
authors.forename: R C
authors.initials: RC
authors.lastname: Grace
authors.forename: L J
authors.initials: LJ
authors.lastname: Horwood
authors.forename: D M
authors.initials: DM
authors.lastname: Fergusson
authors.forename: M R
authors.initials: MR
authors.lastname: MacFarlane
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology / Q000209:etiology*; D001930:Brain Injuries / Q000150:complications* / Q000175:diagnosis; D002675:Child, Preschool; D019955:Conduct Disorder / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D007223:Infant; D008137:Longitudinal Studies; D008297:Male; D017063:Outcome Assessment, Health Care; D011795:Surveys and Questionnaires