title: Psychometric properties and reference values for the ImPACT neurocognitive test battery in a sample of elite youth ice hockey players.
abstract: This cross-sectional study aimed to determine psychometric properties and reference values for ImPACT in a sample of 704 elite ice hockey players aged 13-17. Baseline ImPACT tests were completed at the beginning of the 2011-2012 season. Players aged 16-17 had better visual motor processing speed, adjusted R(2) = .0522, F(2, 45) = 10.79, β = 2.87, p < .001, and impulse control, adjusted R = .0185, F(2,45) = 7.46, β = -1.35, p = .001, than younger players, and girls had greater total symptom ratings than boys (z = -3.47, p = .0005). There were no other sex- or age-related differences in neurocognitive performance, and no effect of previous concussion on ImPACT scores. Reference values with cut-off scores are presented.
authors.affiliation: Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Carly D
authors.initials: CD
authors.lastname: McKay
authors.forename: Brian L
authors.initials: BL
authors.lastname: Brooks
authors.forename: Martin
authors.initials: M
authors.lastname: Mrazik
authors.forename: Andrea L
authors.initials: AL
authors.lastname: Jubinville
authors.forename: Carolyn A
authors.initials: CA
authors.lastname: Emery
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001924:Brain Concussion / Q000175:diagnosis* / Q000209:etiology; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D005260:Female; D006688:Hockey / Q000293:injuries* / Q000523:psychology*; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011594:Psychometrics; D011597:Psychomotor Performance / Q000502:physiology; D012016:Reference Values; D057566:Self Report; D012737:Sex Factors
keywords: Concussion; Ice hockey; Neurocognitive assessment; Pediatric