Although the convergent validity of ImPACT was supported , evidence of discriminant and predictive validity , diagnostic accuracy and responsiveness was inconclusive .
The review found many factors influenced the validity and utility of ImPACT scores .
Background The immediate post concussion assessment and cognitive testing ( ImPACT ) is the most widely used concussion assessment tool .
Despite its popularity , it is unclear if validation studies for the ImPACT test covered all aspects of validity to support its widespread use in research and clinical practice .
Objective The purpose of this report is to review literature surrounding the validity and the utility of the ImPACT test .
Symptom severity predicts prolonged recovery after sport-related concussion, but age and amnesia do not.
OBJECTIVE To identify predictors of prolonged symptoms in athletes who sustain concussions . STUDY DESIGN This was a multicenter prospect i ve cohort study of patients in 2 sport concussion clinics . Possible predictors of prolonged symptoms from concussion were compared in 2 groups , those whose symptoms resolved within 28 days and those whose symptoms persisted beyond 28 days . C and i date predictor variables were entered into a logistic regression model that was used to generate aORs . RESULTS A total of 182 patients met the inclusion criteria during the study period . The mean patient age was 15.2 ± 3.04 years . More than one-third of the patients ( n = 65 ) underwent  computerized neurocognitive testing  on their initial visit . On univariate analyses , Post-Concussion Symptom Scale ( PCSS ) score and all composite scores on computerized neurocognitive testing were apparently associated with prolonged symptom duration . Sex , age , loss of consciousness at time of injury , and amnesia at time of injury were not associated with prolonged symptom duration . After adjusting for potential confounding , only total PCSS score was associated with the odds of suffering prolonged symptoms . CONCLUSION Further efforts to develop clinical tools for predicting which athletes will suffer prolonged recoveries after concussion should focus on initial symptom score
Although the convergent validity of ImPACT was supported , evidence of discriminant and predictive validity , diagnostic accuracy and responsiveness was inconclusive .
The review found many factors influenced the validity and utility of ImPACT scores .
Background The immediate post concussion assessment and cognitive testing ( ImPACT ) is the most widely used concussion assessment tool .
Despite its popularity , it is unclear if validation studies for the ImPACT test covered all aspects of validity to support its widespread use in research and clinical practice .
Objective The purpose of this report is to review literature surrounding the validity and the utility of the ImPACT test .