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Introduction: United States Air Force Academy (USAFA) cadets are at risk for sustaining concussions; however, several factors inhibit disclosure. We aimed to better understand the role of social support in concussion disclosure., Methods and Materials: We used a mixed methods approach with an electronic survey and interviews. The survey used a 9-point Likert scale (1 = strongly disagree and 9 = strongly agree) to assess concussion disclosure. Survey items asked cadets whom they felt most comfortable disclosing a concussion or bell-ringer/ding to, how quickly they would seek medical attention for a suspected concussion or bell-ringer/ding, whether cadets would be generally supportive/unsupportive of another cadet disclosing a concussion to medical staff, and whether other cadets important to them would be generally supportive/unsupportive if they reported a concussion to medical staff. Two multivariate linear regressions, one for concussion and one for bell-ringers/dings, were calculated to determine whether cadet choice of the person they felt most comfortable disclosing a concussion or bell-ringer/ding to predicted whether they would immediately seek medical attention for either condition. Choice of person included Air Officer Commanding (AOC)/Academy Military Trainer (AMT), upper classmen, cadet who had recovered from a concussion, cadet, closest friend, teammate, and squadmate. Descriptive analyses assessed whether cadets felt supported or unsupported by other cadets and by those who were important to them concerning concussion reporting. Thirty-four semi-structured interviews were conducted with cadets to explore their views on concussion disclosure., Results: Increased comfort with disclosing a suspected concussion to an AOC/AMT had higher agreement seeking medical attention (β = 0.28, P < .001). For every 1-point increase in being comfortable disclosing a potential bell-ringer/ding to an AOC/AMT (β = 0.272, P < .001), squadmate (β = 0.241, P = .002), and teammate (β = -0.182, P = .035), agreement for seeking medical attention immediately increased 0.27, increased 0.24, and decreased 0.18, respectively. Interviews indicated cadets would often speak to a peer before seeking medical attention., Conclusions: Our results suggested that cadets felt comfortable reporting a suspected concussion or bell-ringer/ding to various peers and that those peers would be supportive of that choice, indicating social support. Future interventions should include educating cadets that peers may come to them, especially if they are AOCs/AMTs or squadmates., (© The Association of Military Surgeons of the United States 2021. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Context: After a possible concussion mechanism, cadets are unlikely to have a list of concussion signs and symptoms at their disposal. As such, unprompted concussion knowledge may be an essential factor in personal recognition of injury., Objective: To explore determinants that contributed to United States Air Force Academy (USAFA) cadets' disclosure of a concussion. This research focused on 1 of 8 overall discovered themes of unprompted concussion knowledge., Design: Qualitative study., Setting: Military academy., Patients or Other Participants: Cadets at the USAFA (males = 23, females = 11, age = 19.91 ± 1.14 years)., Main Outcome Measure(s): We conducted 34 semistructured interviews. The transcribed text was analyzed in a 5-cycle process. From this process, 8 overall themes emerged, including unprompted concussion knowledge. Subthemes were concussion definition, concussion symptoms, "bell-ringer" or "ding" definition, "bell-ringer" or "ding" symptoms, and concussion versus "bell ringer" or "ding.", Results: Many participants were able to describe a concussion fairly accurately. The most commonly listed concussion signs and symptoms were dizziness (n = 22/34, 64.7%); "can't remember"/"memory loss"/"forgetful" (n = 19/34, 55.9%); and headache (n = 16/34, 47.1%). The cadet participants characterized the most common bell-ringer or ding signs and symptoms as dizziness (n = 2/34, 5.9%) and headache (n = 2/34, 5.9%). Cadets also described how a bell ringer or ding differs from a concussion, often commenting that concussions were more severe than bell ringers or dings., Conclusions: Overall, USAFA cadet participants listed common concussion signs and symptoms. However, they perceived differences between a concussion and a bell ringer or ding. Although decreasing the use of colloquial terms for concussion is recommended, use of these terms when examining a concussion history may be helpful. Concussion-education interventions should continue to focus on describing concussion signs and symptoms using cadets' own words to describe the injury (eg, "forgetful") but differentiating between what may and may not be a concussion and encouraging individuals to consult health care providers regarding possible concussion symptoms., (© by the National Athletic Trainers' Association, Inc.)

Despite the significant impact that concussion has on military service members, significant gaps remain in our understanding of the optimal diagnostic, management, and return to activity/duty criteria to mitigate the consequences of concussion. In response to these significant knowledge gaps, the US Department of Defense (DoD) and the National Collegiate Athletic Association (NCAA) partnered to form the NCAA-DoD Grand Alliance in 2014. The NCAA-DoD CARE Consortium was established with the aim of creating a national multisite research network to study the clinical and neurobiological natural history of concussion in NCAA athletes and military Service Academy cadets and midshipmen. In addition to the data collected for the larger CARE Consortium effort, the service academies have pursued military-specific lines of research relevant to operational and medical readiness associated with concussion. The purpose of this article is to describe the structure of the NCAA-DoD Grand Alliance efforts at the service academies, as well as discuss military-specific research objectives and provide an overview of progress to date. A secondary objective is to discuss the challenges associated with conducting large-scale studies in the Service Academy environment and highlight future directions for concussion research endeavors across the CARE Service Academy sites., (Copyright © 2020 Houston, O'Donovan, Trump, Brodeur, McGinty, Wickiser, D'Lauro, Jackson, Svoboda, Susmarski, Broglio, McAllister, McCrea, Pasquina and Cameron.)

Context: Assessments of the duration of concussion recovery have primarily been limited to sport-related concussions and male contact sports. Furthermore, whereas durations of symptoms and return-to-activity (RTA) protocols encompass total recovery, the trajectory of each duration has not been examined separately., Objective: To identify individual (eg, demographics, medical history), initial concussion injury (eg, symptoms), and external (eg, site) factors associated with symptom duration and RTA-protocol duration after concussion., Design: Cohort study., Setting: Three US military service academies., Patients or Other Participants: A total of 10 604 cadets at participating US military service academies enrolled in the study and completed a baseline evaluation and up to 5 postinjury evaluations. A total of 726 cadets (451 men, 275 women) sustained concussions during the study period., Main Outcome Measure(s): Number of days from injury (1) until the participant became asymptomatic and (2) to complete the RTA protocol., Results: Varsity athlete cadets took less time than nonvarsity cadets to become asymptomatic (hazard ratio [HR] = 1.75, 95% confidence interval = 1.38, 2.23). Cadets who reported less symptom severity on the Sport Concussion Assessment Tool, third edition (SCAT3), within 48 hours of concussion had 1.45 to 3.77 times shorter symptom-recovery durations than those with more symptom severity. Similar to symptom duration, varsity status was associated with a shorter RTA-protocol duration (HR = 1.74, 95% confidence interval = 1.34, 2.25), and less symptom severity on the SCAT3 was associated with a shorter RTA-protocol duration (HR range = 1.31 to 1.47). The academy that the cadet attended was associated with the RTA-protocol duration (P < .05)., Conclusions: The initial total number of symptoms reported and varsity athlete status were strongly associated with symptom and RTA-protocol durations. These findings suggested that external (varsity status and academy) and injury (symptom burden) factors influenced the time until RTA., (© by the National Athletic Trainers' Association, Inc.)

Introduction: Concussion is unique among sport-related injuries as effective clinical diagnosis and treatment often rely on symptom-report for clinician diagnosis and treatment. However, at-risk populations such as collegiate athletes and military academy cadets often have been shown to under-report concussions and symptoms, complicating diagnosis, treatment, and policy-based interventions. The purpose of this study was to explore factors influencing concussion reporting in United States Air Force Academy (USAFA) cadets., Materials and Methods: Semi-structured interviews were conducted on 34 cadets (18 with concussion history; 16 without concussion history). This study was approved by the USAFA Institutional Review Board. Analysis included a five-cycle process of clarifying the topic at hand through an introduction, conducting a literature review, data collection and summarization, relating current findings to current literature, and making final interpretations. Data were summarized by creation of a codebook after reading five transcripts and identifying meaningful units. A four-person research team read and identified meaningful units individually, then met to discuss common meaningful units and codebook creation. Once the codebook was created, the lead researcher used the codebook to code all transcripts., Results: Eight themes were generated from interview transcripts. This manuscript focuses on the perceived costs following a concussion theme and the following subthemes: perceived costs to physical fitness, military career aspirations, pilot qualifications, sport, reputation, academics, and lack of time., Conclusions: Cadet interviews described a complex environment where concussions were often viewed as costly to future career ambitions and provided potential reasons for non-disclosure largely including disruption in daily life. Reduction in perceived and actual harms due to concussion disclosure will require not only improving clinical care, but also addressing barriers to self-disclosure. Additionally, research suggests the sooner one reports a concussion, the sooner they return to physical or military activity. Educational interventions should be designed to address the perceived costs identified from our study and educate cadets that while some costs may be reality, others may not. Secondly, it should also be stressed to cadets that the sooner one seeks medical attention following a concussion, the sooner they may return to activity. Messaging around these themes may decrease the costs associated with time removed from academics, athletics, or military activities therefore minimizing attempts at concussion self-management. Lastly, if efforts are made to improve the overall concussion disclosure stigma, cadets may increase seeking care after injury because their reputation may not be as impacted., (© Association of Military Surgeons of the United States 2019. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Background: Concussion, or mild traumatic brain injury, is a major public health concern affecting 42 million individuals globally each year. However, little is known regarding concussion risk factors across all concussion settings as most concussion research has focused on only sport-related or military-related concussive injuries., Methods: The current study is part of the Concussion, Assessment, Research, and Education (CARE) Consortium, a multi-site investigation on the natural history of concussion. Cadets at three participating service academies completed annual baseline assessments, which included demographics, medical history, and concussion history, along with the Sport Concussion Assessment Tool (SCAT) symptom checklist and Brief Symptom Inventory (BSI-18). Clinical and research staff recorded the date and injury setting at time of concussion. Generalized mixed models estimated concussion risk with service academy as a random effect. Since concussion was a rare event, the odds ratios were assumed to approximate relative risk., Results: Beginning in 2014, 10,604 (n = 2421, 22.83% female) cadets enrolled over 3 years. A total of 738 (6.96%) cadets experienced a concussion, 301 (2.84%) concussed cadets were female. Female sex and previous concussion were the most consistent estimators of concussion risk across all concussion settings. Compared to males, females had 2.02 (95% CI: 1.70-2.40) times the risk of a concussion regardless of injury setting, and greater relative risk when the concussion occurred during sport (Odds Ratio (OR): 1.38 95% CI: 1.07-1.78). Previous concussion was associated with 1.98 (95% CI: 1.65-2.37) times increased risk for any incident concussion, and the magnitude was relatively stable across all concussion settings (OR: 1.73 to 2.01). Freshman status was also associated with increased overall concussion risk, but was driven by increased risk for academy training-related concussions (OR: 8.17 95% CI: 5.87-11.37). Medical history of headaches in the past 3 months, diagnosed ADD/ADHD, and BSI-18 Somatization symptoms increased overall concussion risk., Conclusions: Various demographic and medical history factors are associated with increased concussion risk. While certain factors (e.g. sex and previous concussion) are consistently associated with increased concussion risk, regardless of concussion injury setting, other factors significantly influence concussion risk within specific injury settings. Further research is required to determine whether these risk factors may aid in concussion risk reduction or prevention.

Introduction: The prevalence and possible long-term consequences of concussion remain an increasing concern to the U.S. military, particularly as it pertains to maintaining a medically ready force. Baseline testing is being used both in the civilian and military domains to assess concussion injury and recovery. Accurate interpretation of these baseline assessments requires one to consider other influencing factors not related to concussion. To date, there is limited understanding, especially within the military, of what factors influence normative test performance. Given the significant physical and mental demands placed on service academy members (SAM), and their relatively high risk for concussion, it is important to describe demographics and normative profile of SAMs. Furthermore, the absence of available baseline normative data on female and non-varsity SAMs makes interpretation of post-injury assessments challenging. Understanding how individuals perform at baseline, given their unique individual characteristics (e.g., concussion history, sex, competition level), will inform post-concussion assessment and management. Thus, the primary aim of this manuscript is to characterize the SAM population and determine normative values on a concussion baseline testing battery., Materials and Methods: All data were collected as part of the Concussion Assessment, Research and Education (CARE) Consortium. The baseline test battery included a post-concussion symptom checklist (Sport Concussion Assessment Tool (SCAT), psychological health screening inventory (Brief Symptom Inventory (BSI-18) and neurocognitive evaluation (ImPACT), Balance Error Scoring System (BESS), and Standardized Assessment of Concussion (SAC). Linear regression models were used to examine differences across sexes, competition levels, and varsity contact levels while controlling for academy, freshman status, race, and previous concussion. Zero inflated negative binomial models estimated symptom scores due to the high frequency of zero scores., Results: Significant, but small, sex effects were observed on the ImPACT visual memory task. While, females performed worse than males (p < 0.0001, pη2 = 0.01), these differences were small and not larger than the effects of the covariates. A similar pattern was observed for competition level on the SAC. There was a small, but significant difference across competition level. SAMs participating in varsity athletics did significantly worse on the SAC compared to SAMs participating in club or intramural athletics (all p's < 0.001, η2 = 0.01). When examining symptom reporting, males were more than two times as likely to report zero symptoms on the SCAT or BSI-18. Intramural SAMs had the highest number of symptoms and severity compared to varsity SAMs (p < 0.0001, Cohen's d < 0.2). Contact level was not associated with SCAT or BSI-18 symptoms among varsity SAMs. Notably, the significant differences across competition level on SCAT and BSI-18 were sub-clinical and had small effect sizes., Conclusion: The current analyses provide the first baseline concussion battery normative data among SAMs. While statistically significant differences may be observed on baseline tests, the effect sizes for competition and contact levels are very small, indicating that differences are likely not clinically meaningful at baseline. Identifying baseline differences and significant covariates is important for future concussion-related analyses to inform concussion evaluations for all athlete levels.