The article is available free on the Journal of Neurotrauma website until May 19, 2018.

"The Effects of Sex Differences and Hormonal Contraception on Outcomes Following Collegiate Sports-Related Concussion" is coauthored by Virginia Gallagher, Feinberg School of Medicine, Northwestern, University (Evanston, IL) and colleagues from Northwestern University and Edward Hines, Jr. Veterans Administration Hospital (IL). The researchers measured peak symptom severity following concussion among the study participants and length of time to recovery, defined as the period of time between the injury and when they were cleared to return to full play. Within the group of female study participants, the researchers compared outcomes among hormonal contraceptive users and non-users.

"This study addresses an area of great contemporary interest and debate, providing evidence for differential concussive outcomes between male and female collegiate athletes," says John Povlishock, PhD, Editor-in-Chief of Journal of Neurotrauma. "Although, as noted by the authors, the study does have several limitations, it provides novel and useful information, particularly regarding the issue of sex differences in the length of recovery from concussive injury, thereby setting the stage for its continued investigation."

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Journal Reference:

1. Virginia Gallagher, Natalie Kramer, Kristin Abbott, John Alexander, Hans Breiter, Amy Herrold, Tory Lindley, Jeffrey Mjaanes, James Reilly. The Effects of Sex Differences and Hormonal Contraception on Outcomes after Collegiate Sports-Related Concussion. Journal of Neurotrauma, 2018; DOI: 10.1089/neu.2017.5453