Concussion education for youth athletes using Pre-Game Safety Huddles: a cluster-randomised controlled trial.

OBJECTIVES: Determine whether Pre-Game Safety Huddles, a novel and low-resource approach to concussion education, increase the expected likelihood of concussion reporting for youth athletes. METHODS: A cluster-randomised trial compared Safety Huddles to usual care. Safety Huddles bring together athletes and coaches from both teams before the start of each game for coaches to briefly affirm the importance of speaking up if a concussion is suspected. Participants were athletes from 22 competitive community-based American football and girls and boys soccer teams (ages 9-14), and randomisation into intervention or control occurred at the level of the bracket (group of teams that compete against each other during the regular season). The primary outcome was expected likelihood of reporting concussion symptoms to the coach, measured via validated athlete survey at the beginning and end of the season. RESULTS: Of 343 eligible participants, 339 (99%) completed baseline surveys and 303 (88%) completed surveys at season end. The mean (SD) age was 11.4 (1.1) years, 26% were female soccer athletes, 27% were male soccer athletes and 47% were football athletes. In adjusted analyses accounting for baseline values and clustering by sport and team via random effects, expected likelihood of concussion reporting at the end of the season was significantly higher in the intervention group compared to controls (mean difference=0.49, 95% CI 0.11 to 0.88; Cohen's d=0.35). CONCLUSIONS AND RELEVANCE: Pre-Game Safety Huddles increased the expected likelihood of athletes reporting concussion symptoms. While further study is warranted, sport organisations should consider this approach a promising low-resource option for improving concussion safety in their setting. TRIAL REGISTRATION NUMBER: NCT04099329.

Evaluating fomite risk of brown paper bags storing personal protective equipment exposed to SARS-CoV-2: A quasi-experimental study.

INTRODUCTION: Literature is lacking on the safety of storing contaminated PPE in paper bags for reuse, potentially increasing exposure to frontline healthcare workers (HCW) and patients. The aim of this study is to evaluate the effectiveness of paper bags as a barrier for fomite transmission of SARS-CoV-2 by storing face masks, respirators, and face shields. METHODS: This quasi-experimental study evaluated the presence of SARS-CoV-2 on the interior and exterior surfaces of paper bags containing PPE that had aerosolized exposures in clinical and simulated settings. Between May and October 2020, 30 unique PPE items were collected from COVID-19 units at two urban hospitals. Exposed PPE, worn by either an infected patient or HCW during a SARS-CoV-2 aerosolizing event, were placed into an unused paper bag. Samples were tested at 30-minute and 12-hour intervals. RESULTS: A total of 177 swabs were processed from 30 PPE samples. We found a 6.8% positivity rate among all samples across both collection sites. Highest positivity rates were associated with ventilator disconnection and exposure to respiratory droplets from coughing. Positivity rates differed between hospital units. Total positivity rates were similar between 30-minute (6.7%) and 12-hour (6.9%) sample testing time intervals. Control samples exposed to inactivated SARS-CoV-2 droplets had higher total viral counts than samples exposed to nebulized aerosols. CONCLUSIONS: Data suggests paper bags are not a significant fomite risk for SARS-CoV-2 transmission. However, controls demonstrated a risk with droplet exposure. Data can inform guidelines for storing and re-using PPE in situations of limited supplies during future pandemics.

Item Pool Development for the School-Aged Life Impact Burn Recovery Evaluation Profile Computerized Adaptive Test: An Observer-Reported Outcome Assessment Measuring the Impact of Burn Injuries in School-Aged Children.

The transition from early childhood to teen years (5-12) is a critical time of development, which can be made particularly challenging by a burn injury. Assessing postburn recovery during these years is important for improving pediatric survivors' development and health outcomes. Few validated burn-specific measures exist for this age group. The purpose of this study was to generate item pools that will be used to create a future computerized adaptive test (CAT) assessing postburn recovery in school-aged children. Item pool development was guided by the previously developed School-Aged Life Impact Burn Recovery Evaluation (SA-LIBRE5-12) conceptual framework. The item pool development process involved a systematic literature review, extraction of candidate items from existing legacy measures, iterative item review during expert consensus meetings, and parent cognitive interviews. The iterative item review with experts consisted of six rounds. A total of 10 parent cognitive interviews were conducted. The three broad themes of concern were items that needed 1) clarification, needed context, or were vague, 2) age dependence and relevance, and 3) word choice. The cognitive interviews indicated that survey instructions, recall period, item stem, and response choices were interpretable by respondents. Final item pool based on parental feedback consists of 57, 81, and 60 items in physical, psychological, and family and social functioning, respectively. Developed item pools (n = 198) in three domains are consistent with the existing conceptual framework. The next step involves field testing the item pool and calibration using item response theory to develop and validate the SA-LIBRE5-12 CAT Profile.

Physical, Psychological, and Social Outcomes in Pediatric Burn Survivors Ages 5 to 18 Years: A Systematic Review.

Acute pediatric burn injuries often result in chronic sequelae that affect physical, psychological, and social outcomes. To date, no review has comprehensively reported on the impact of burn injuries across all three domains in school-aged children. The aim of this systematic review was to identify published literature that focuses on the impact of burn injuries on physical, psychological, or social functioning, and report upon the nature of study characteristics and their outcomes. We included literature published after 1980, focusing on burn outcomes in children aged 5 to 18 years. Each eligible study was systematically reviewed and primary outcomes were classified into outcome domains based on existing frameworks. Fifty-eight studies met inclusion criteria, and reported on physical (n = 24), psychological (n = 47), and social (n = 29) domains. The majority of the studies had sample sizes of <100 participants, burn size of <40%, and findings reported by parents and/or burn survivors. Only eight of 107 different measures were used in three or more studies. Parents and burn survivors generally reported better physical and social outcomes and worse psychological functioning compared to non-burn populations. Physical disabilities were associated with psychological and social functioning in several studies. Follow-up data reported improvements across domains. This review demonstrates the importance of physical, psychological, and social status as long-term outcomes in burn survivors. Mixed findings across three outcome domains warrant long-term research. Findings of this review will guide the foundation of comprehensive burn and age-specific instruments to assess burn recovery.

Development of the School-Aged Life Impact Burn Recovery Evaluation (SA-LIBRE5-12) Profile: A Conceptual Framework.

Pediatric burn injuries can alter the trajectory of the survivor's entire life. Patient-centered outcome measures are helpful to assess unique physical and psychosocial needs and long-term recovery. This study aimed to develop a conceptual framework to measure pediatric burn outcomes in survivors aged 5 to 12 years as a part of the School-Aged Life Impact Burn Recovery Evaluation Computer Adaptive Test (SA-LIBRE5-12 CAT) development. This study conducted a systematic literature review guided by the WHO International Classification of Functioning-Child and Youth and domains in the American Burn Association/Shriners Hospitals for Children Burn Outcomes Questionnaire5-18. Interviews with eight parents and seven clinicians were conducted to identify important domains in child recovery. One clinician focus group with four clinicians was completed to identify gaps in the preliminary framework, and semiweekly expert consensus meetings were conducted with three experts to solidify the framework. Qualitative data were analyzed by grounded theory methodology. Three major thematic outcome domains emerged: 1) Physical Functioning: fine motor and upper extremity, gross motor and lower extremity, pain, skin symptoms, sleep and fatigue, and physical resilience; 2) Psychological Functioning: cognitive, behavioral, emotional, resilience, and body image; and 3) Family and Social Functioning: family relationships, and parental satisfaction, school, peer relations, and community participation. The framework will be used to develop item banks for a CAT-based assessment of school-aged children's health and developmental outcomes, which will be designed for clinical and research use to optimize interventions, personalize care, and improve long-term health outcomes for burned children.

Spartina alterniflora δ15N as an indicator of estuarine nitrogen load and sources in Cape Cod estuaries.

δ15N values of coastal biota have been used as indicators of land-derived N-loads and sources to estuarine systems and should respond predictably to differences in nitrogen and be sensitive to changes in nitrogen, preferably at the low end of eutrophication. We evaluated Spartina alterniflora as an indicator species of N-loads and sources of δ15N throughout the growing season, and compared the average δ15N to estuarine nitrogen loads and sources for several estuaries receiving different watershed N-loads. δ15N of S. alterniflora differed among estuaries, and these differences were maintained even as δ15N declined during the end of the growing season. δ15N values increased with increasing nitrogen loads to the subestuaries and with increasing percent wastewater-derived nitrogen load. The response of δ15N of S. alterniflora to increased N loads was greater at low N-loads, and decreased as N-loads increased, suggesting that S. alterniflora is a good indicator of incipient nitrogen load.

Differences in urbanization and degree of marine influence are reflected in delta13C and delta15N of producers and consumers in seagrass habitats of Puerto Rico.

Couplings between land use and marine food webs in tropical systems are poorly understood. We compared land-sea coupling in seven sites around Puerto Rico, differing in the degree of precipitation and urbanization, by measuring delta(13)C and delta(15)N in producers and consumers. delta(15)N values were influenced by human activity: the food web from sites near urbanized centers was on average 1 per thousand heavier in delta(15)N compared to undeveloped sites. This is most likely due to wastewater inputs from septic systems relatively near the shoreline. Changes in delta(13)C were best explained by differences in the degree of marine influence. Where terrestrial inputs from a major river dominated, delta(13)C values were lighter, whereas sites further from land and in locations exposed to oceanic currents had heavier delta(13)C values, characteristic of a marine source of dissolved organic carbon. We found no significant effect of precipitation on connectivity in spite of a twofold difference in annual average rainfall between the north and south coast. The results suggest there is some connectivity between land and sea in Puerto Rico, despite high rates of evaporation relative to precipitation.