Introduction The hormonal withdrawal hypothesis suggests that progesterone reduction in women after concussion may lead to greater symptom burden and longer recoveries. Current evidence indicates that hormonal stability after head injury may be an important moderator of postconcussive recovery. Thus, female athletes using hormonal contraceptives (HC) may exhibit better recovery profiles as their hormone levels are artificially stabilized. Our investigation sought to examine the relation between HC use and concussion outcomes in female student-athletes. Methods This longitudinal study examined concussion outcomes from female student-athletes participating in the NCAA-DoD CARE Consortium Research Initiative, including academic years 2014 to 2020. Eighty-six female collegiate athletes reporting HC use (HC+) were group matched on age, body mass index, race/ethnicity, sport contact level, concussion history, and current injury characteristics (i.e., amnesia, loss of consciousness) to 86 female collegiate athletes reporting no HC use (HC-). All participants had sustained a concussion and completed the Sport Concussion Assessment Tool, 3rd edition Symptom Scale, Brief Symptom Inventory-18, and Immediate Post-concussion Assessment and Cognitive Testing at preinjury baseline, 24 to 48 h postinjury, and when cleared for unrestricted return to play. To provide an index of recovery trajectory, days between injury and unrestricted return to play were calculated. Results Groups did not differ on length of recovery, postconcussion symptoms, psychological health, or cognitive assessments. No differences were observed between groups on any measure when accounting for baseline levels of performance. Conclusions Our findings suggest that HC use does not influence recovery trajectory, symptoms, or recovery of cognitive function after concussion.
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