title: Cognitive outcome in children and adolescents following severe traumatic brain injury: influence of psychosocial, psychiatric, and injury-related variables.
abstract: Previous studies of childhood traumatic brain injury (TBI) have emphasized injury-related variables rather than psychiatric or psychosocial factors as correlates of cognitive outcomes. We addressed this concern by recruiting a consecutive series (N = 24) of children age 5 through 14 years who suffered a severe TBI, a matched group who sustained a mild TBI, and a second matched group who sustained an orthopedic injury. Standardized intellectual, memory, psychiatric, family functioning, family psychiatric history, neurological, and neuroimaging assessments were conducted at an average of 2 years following injury. Severe TBI, when compared to mild TBI and orthopedic injury, was associated with significant decrements in intellectual and memory function. A principal components analysis of independent variables that showed significant (p < .05) bivariate correlations with the outcome measures yielded a neuropsychiatric factor encompassing severity of TBI indices and postinjury psychiatric disorders and a psychosocial disadvantage factor. Both factors were independently and significantly related to intellectual and memory function outcome. Postinjury psychiatric disorders added significantly to severity indices and family functioning and family psychiatric history added significantly to socioeconomic status in explaining several specific cognitive outcomes. These results may help to define subgroups of children who will require more intensive services following their injuries.
authors.affiliation: Department of Psychiatry, University of Iowa, Iowa City, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Max
authors.forename: M A
authors.initials: MA
authors.lastname: Roberts
authors.forename: S L
authors.initials: SL
authors.lastname: Koele
authors.forename: S D
authors.initials: SD
authors.lastname: Lindgren
authors.forename: D A
authors.initials: DA
authors.lastname: Robin
authors.forename: S
authors.initials: S
authors.lastname: Arndt
authors.forename: W L
authors.initials: WL
authors.lastname: Smith
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
mesh_terms: D000293:Adolescent; D001925:Brain Damage, Chronic / Q000175:diagnosis* / Q000523:psychology; D002648:Child; D016241:Child of Impaired Parents / Q000523:psychology*; D002675:Child, Preschool; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D005195:Family Relations; D005260:Female; D005500:Follow-Up Studies; D016489:Head Injuries, Closed / Q000175:diagnosis* / Q000523:psychology; D006801:Humans; D007360:Intelligence; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis* / Q000235:genetics / Q000523:psychology; D011939:Mental Recall; D009483:Neuropsychological Tests; D011610:Psychosocial Deprivation; D012944:Social Support