Effects of hours of sleep on ImPACT concussion testing: comparing baseline with postinjury scores

Author:

Hrabarchuk Eugene I.1,Kalagara Roshini1,Ezzat Bahie1,Rentzeperis Frederika1,Leska Tomasina M.1,Schupper Alexander J.1,Rodriguez Benjamin1,Ali Muhammad1,Quinones Addison1,McCarthy Lily1,Carr Mathew T.1,Lehman Arielle B.2,Gometz Alex3,Lovell Mark4,Choudhri Tanvir F.1

Affiliation:

1. Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York;

2. Department of Neurology, Columbia University, New York;

3. Physical Medicine and Rehabilitation, Concussion Management of New York, New York;

4. Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania

Abstract

OBJECTIVE The influence of sleep on baseline and postconcussion neurocognitive performance prior to Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) is poorly understood. Since ImPACT is widely used in youth sport to assess neurocognitive performance before and after head injury, it is important to delineate factors that affect testing performance. While some have reported correlations between fewer hours of sleep and lower scores on baseline tests, others have not observed any such associations. Therefore, the authors sought to compare the relationship between sleep and neurocognitive performance on ImPACT at both baseline and postinjury. METHODS The authors queried a database of 25,815 ImPACT tests taken from 2009 to 2019 by athletes aged 12–22 years. There were 11,564 baseline concussion tests and 7446 postinjury concussion ImPACT tests used in the analysis. Linear regression was used to model the effect of sleep on baseline and postconcussion ImPACT scores adjusting for sex, age, learning disability, attention-deficit/hyperactivity disorder, number of prior concussions, number of games missed, and strenuous exercise before testing. RESULTS Mean composite scores expectedly were all significantly lower in the post–head injury group compared with the baseline group. In the multivariable analysis, at baseline, hours of sleep significantly affected symptom scores (β = −1.050, 95% CI −1.187 to −0.9138; p < 0.0001). In the postinjury multivariable analysis, verbal memory (β = 0.4595, 95% CI 0.2080–0.7110; p = 0.0003), visual memory (β = 0.3111, 95% CI 0.04463–0.5777; p = 0.0221), impulse control (β = −0.2321, 95% CI −0.3581 to −0.1062; p = 0.0003), and symptom scores (β = −0.9168, 95% CI −1.259 to −0.5750; p < 0.0001) were all affected by hours of sleep. CONCLUSIONS Hours of sleep did not alter neurocognitive metrics at baseline but did have an impact on post–head injury metrics. These findings suggest that individuals may be able to compensate for lack of sleep at baseline but not immediately after concussion. Concussions may reduce cognitive reserve or detract from the brain’s resources, making sleep even more important for proper neurocognitive functioning postconcussion. Future work will analyze the effects of sleep on postconcussion test performance.

Publisher

Journal of Neurosurgery Publishing Group (JNSPG)

Reference45 articles.

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2. Trends in the prevalence of concussion reported by US adolescents, 2016-2020;Veliz P,2021

3. Sensitivity and specificity of the ImPACT Test Battery for concussion in athletes;Schatz P,2006

4. Effects of a history of headache and migraine treatment on baseline neurocognitive function in young athletes;McCarthy L,2022

5. Sex differences in baseline neuropsychological function and concussion symptoms of collegiate athletes;Covassin T,2006

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