Diagnostic Efficiency of ImPACT and CogSport in Concussed Rugby Union Players Who Have Not Undergone Baseline Neurocognitive Testing

The current study endeavored to replicate the approach to sports-related concussion management adopted by some community-based sporting organizations by examining the diagnostic efficiency of CogSport and ImPACT in athletes without baseline test data and assessed only once postinjury. Recently concu...

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Bibliographic Details
Published in:Applied neuropsychology. Adult 2012-04, Vol.19 (2), p.90-97
Main Authors: Gardner, Andrew, Shores, E. Arthur, Batchelor, Jennifer, Honan, Cynthia A.
Format: Article
Language:English
Subjects:
Adult
Attention
Brain Concussion - complications
Brain Concussion - diagnosis
Brain Concussion - psychology
Case-Control Studies
Cognition Disorders - diagnosis
Cognition Disorders - etiology
CogSport
computerized neuropsychological testing
Decision Making
Diagnosis, Computer-Assisted
Football - injuries
Humans
ImPACT
Male
Memory, Short-Term
Neuropsychological Tests
Reaction Time
Recognition (Psychology)
Regression Analysis
Retrospective Studies
ROC Curve
Severity of Illness Index
sports-related concussion
Time Factors
Visual Perception
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Summary:The current study endeavored to replicate the approach to sports-related concussion management adopted by some community-based sporting organizations by examining the diagnostic efficiency of CogSport and ImPACT in athletes without baseline test data and assessed only once postinjury. Recently concussed nonelite-level rugby union players (N = 51) were tested within 72 hours of sustaining a concussion and were compared to nonconcussed matched controls (N = 41). Demographic information and history of recent concussion were also collected. Logistic regression analysis and receiver-operating characteristic curve analysis were conducted to evaluate the most accurate scores at identifying group membership. Overall, the classification accuracy of CogSport and ImPACT represented only very minimal improvements over a demographic-only (age, estimated premorbid Full-Scale IQ, and number of previous concussions) model. Positive predictive power and negative predictive power of composite scores were modest. The ImPACT postconcussion symptoms total (severity) score was most accurate at classifying concussed athletes. Where neuropsychological tests are utilized on a single occasion postconcussion and in the absence of baseline testing, postinjury testing does not improve diagnostic utility beyond the demographic model. These results do not validate this approach as a useful method of managing sports-related concussion.
ISSN:2327-9095
2327-9109
DOI:10.1080/09084282.2011.643945