TY  - JOUR
PY  - 2022//
TI  - Same-year repeat concussions in the National Football League:trends from 2015 through 2019
JO  - World neurosurgery
A1  - Cools, Michael
A1  - Zuckerman, Scott
A1  - Herzog, Mackenzie
A1  - Mack, Christina
A1  - Lee, Rebecca Y.
A1  - Solomon, Gary
A1  - Sills, Allen
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - BACKGROUND: Sport-related concussion (SRC) prevention and management is a focus of the National Football League (NFL). While most prior reports evaluate SRC incidence, few have studied same-year repeat concussions. The objective of this study was to evaluate the frequency of same-year repeat concussions in the NFL. <br><br>METHODS: A retrospective, case-control study of same-year repeat concussion in the NFL from 2015-2019 was performed. The electronic health record of the NFL was reviewed for players sustaining concussions and same-year repeat concussions. Wilcoxon rank-sum tests were used to calculate same-year repeat concussion rates, and risk ratios and 95% confidence intervals (CIs) were estimated using log-binomial regression. <br><br>RESULTS: From 2015-2019, the risk of sustaining a same-year repeat concussion in the NFL ranged from 0.38% to 0.69% per season. Among players who sustained a concussion, the risk of a same-year repeat concussion ranged from 5.3% to 8.3%, which did not differ significantly from the risk of sustaining a single concussion, which ranged from 6.2% to 8.3%. There was a median of 38 participation days between initial and same-year repeat concussion. Players missed more time from same-year repeat concussion (median 12 days) compared to both single (median 9 days; p<0.0001) and initial (median 9.5 days, p=0.002) concussions. <br><br>CONCLUSIONS: The risk of a repeat concussion was similar to the risk of sustaining a single concussion among NFL players. More time was missed following a same-year repeat concussion compared to single or initial concussions. Further research is needed to maximize player safety and minimize same-year repeat concussions.<p />  <p>Language: en</p>
LA  - en
SN  - 1878-8750
UR  - http://dx.doi.org/10.1016/j.wneu.2022.02.033
ID  - ref1
ER  -