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May 28, 2021
AbstractObjectiveThe purpose of this study was to evaluate whether self-reports of cognitive symptoms were associated with cognitive test performances.MethodsThe sample included 112 Canadian Football League (CFL) athletes who were diagnosed using CFL concussion protocols. All participants underwent a cognitive assessment at baseline and prior to medical clearance. The battery included the immediate post-concussion assessment and cognitive testing (ImPACT) and The Post-Concussion Symptom Checklist.ResultsSelf-reported cognitive symptoms and cognitive test performances were evaluated using Spearman’s rank correlations (rho; ρ). There were significant negative correlations between post-concussion verbal memory composite and the self-reported cognitive symptoms total (ρ = −0.22). Similar patterns were found for visual memory composite and the self-reported cognitive symptom total (ρ = −0.19). Paired-samples t-tests were used to assess differences between pre- and post-concussion scores. Cases were omitted if there were no pre- or post-test. If multiple concussions were sustained, the first assessment was used (n = 99). There was a significant difference between the pre- and post-test results between the subjective cognitive symptom total (t = −2.034, p > 0.05).ConclusionsThese outcomes suggest that CFL athletes report significantly higher cognitive symptoms following a concussion. Additionally, the pre-test subjective measures were not correlated to objective cognitive functioning. However, post-concussion subjective measures were negatively correlated with verbal and visual memory. This suggests that self-reports were more accurate at assessing their overall functioning following a concussion.

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Author: J H, M M, R W, et al.