@article{ref1,
title="Sport Concussion Assessment Tool-Fifth Edition normative reference values for professional rugby union players",
journal="Clinical journal of sport medicine",
year="2018",
author="Fuller, Gordon W. and Raftery, Martin",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="OBJECTIVE: To describe distributions and establish normative ranges for new or changed subcomponents of the Sports Concussion Assessment Tool (SCAT)-5. <br><br>DESIGN: Cross-sectional study. SETTING AND PARTICIPANTS: Professional Rugby Union players performing 2017 preseason baseline SCAT-5 testing. INDEPENDENT VARIABLES: Subcomponent tests newly introduced or changed in the SCAT-5. MAIN MEASUREMENTS: The 10-word immediate and delayed recall tests and the rapid neurological screen. <br><br>RESULTS: Thousand two hundred three players were included in complete case analyses. The 10-word immediate recall test [median score 15, interquartile range (IQR) 15-22, range 3-30] showed an asymmetrical, bimodal distribution. The delayed recall test (median score 7, IQR 5-9, range 0-10) demonstrated a left skewed distribution. The diplopia and reading/following instruction tests of the neurological screen were performed normally by virtually all participants (98.5% and 99.6%, respectively). Normative classification ranges for each SCAT-5 subcomponents of interest were determined. <br><br>CONCLUSIONS: The increased spread of scores, with improved midrange centering, suggests that the increase to 10-word list lengths should improve the performance of immediate and delayed recall tests. Normative ranges will provide a distribution against which postinjury SCAT-5 scores can be compared and interpreted.<p /> <p>Language: en</p>",
language="en",
issn="1050-642X",
doi="10.1097/JSM.0000000000000713",
url="http://dx.doi.org/10.1097/JSM.0000000000000713"
}