Introducing the Child Sport Concussion Assessment Tool 6 (Child SCAT6).

Competing Interests: Competing interests: GAD is a member of the Scientific Committee of the 6th International Conference on Concussion in Sport; an honorary member of the AFL Concussion Scientific Committee; Section Editor, Sport and Rehabilitation, NEUROSURGERY; and has attended meetings organised by sporting organisations including the NFL, NRL, IIHF, IOC and FIFA; however has not received any payment, research funding, or other monies from these groups other than for travel costs. RJE is a paid consultant for the NHL and cochair of the NHL/ NHLPA Concussion Subcommittee. He is also a paid consultant and chair of the Major League Soccer concussion committee and a consultant to the US Soccer Federation. He previously served as aneuropsychology consultant to Princeton University Athletic Medicine and Eye Guide. He iscurrently a co-PI for a grant funded by the NFL (NFL-Long) through Boston Children’s Hospital. He occasionally provides expert testimony in matters related to MTBI and sports concussion and occasionally receives honoraria and travel support/reimbursement for professional meetings. OHA is a Senior Physiotherapist at University Hospitals Dorset NHS Foundation Trust (England) and is Para Football Physiotherapy Lead/Para Football Classification Lead at the Football Association (England). He also works on a consultancy basis with the Football Association as the squad physiotherapist to the England Cerebral Palsy Football squad and teaches on the Football Association's Advanced Trauma and Medical Management in Football course on a consultancy basis. He has a Visiting Senior Lecturer position at the University of Portsmouth, England (unpaid). He sits on several disability sport committees including Para Football Foundation as Medical Unit Co-Lead (unpaid), the International Federation of Cerebral Palsy Football as Medical and Sports Science Director (unpaid), and the International Blind Sports Association as Medical Committee member (unpaid). He has Associate Editor position sat the British Journal of Sports Medicine (unpaid) and BMJ Open Sports & Exercise Medicine (unpaid). He is also an Institutional Ethics Committee external member for World Rugby (unpaid) and co-chair of the Concussion in Para Sport Group (unpaid). VA: Financial: Australian National Health and Medical Research Council and Medical Research Future fund: research grants. Royalties: Pearson Publishing (Test of Everyday Attention) Collaboration: Australian Football League (Partnership agreement to fund research – funds go to my institute) Boards: Editorship: Journal of Neuropsychology, Neuropsychology, Journal of Clinical & Experimental Neuropsychology. CB is an Associate Professor of PM&R at Spaulding Rehabilitation Hospital/Harvard Medical School and Chief Medical Officer at Spaulding Rehabilitation Hospital. She receives grant funding from the US Center for Disease Control and Prevention and the US National Institute on Disability, Independent Living and Rehabilitation Research. She serves on the Board of Directors of the United States Olympic & Paralympic Committee (unpaid) as well as the International Paralympic Committee Medical Committee (unpaid) and the International Olympic Committee Medical & Scientific Commission (unpaid). She serves as an Associate Editor of the British Journal of Sports Medicine (unpaid) as well as the PM&R Journal (unpaid). BLB reports grants from the National Institute on Aging and National Institute of Neurological Disorders and Stroke and honoraria and travel reimbursement for conference presentations. SB: Current or past research funding from the National Institutes of Health; Centers for Disease Control and Prevention; Department of Defense - USA Medical Research Acquisition Activity, National Collegiate Athletic Association; National Athletic Trainers’ Association Foundation; National Football League/Under Armour/GE; Simbex; and Elmind A. He has consulted for US Soccer (paid), US Cycling (unpaid), University of Calgary SH Red Concussions external advisory board (unpaid), medico-legal litigation and received speaker honorarium and travel reimbursements (including CISG) for talks given. He is co-author of “Biomechanics of Injury (3rd edition)” and has a patent pending on “Brain Metabolism Monitoring Through CCO Measurements Using All-Fiber-Integrated Super-Continuum Source” (US Application No. 17/164,490). He is on the and is/was on the editorial boards (all unpaid) for Journal of Athletic Training (2015 to present), Concussion (2014 to present), Athletic Training & Sports Health Care (2008 to present), British Journal of Sports Medicine (2008 to2019) JMB is a part time employee of the National Hockey League and a member of the NHL/NHLPA Concussion subcommittee. He is the neuropsychology consultant to Major League Soccer's Sporting KC. He has served as a consultant to Eye Guide. JSB is supported by the University of Calgary, the Natural Sciences and Engineering Research Council [CGSD3-559333- 2021] and an honorarium for the methods author work associated with Reviews two and four. GAG: Reports grant funding from CDC TEAM and OnTRACK grants, NIMH APNA grant, royalties from PAR, consulting fees from NFL Baltimore Ravens, Zogenix International, and Global Pharma Consultancy and travel support for professional meetings. He is a member of USA Football Medical Advisory Panel. CCG: discloses the following: Grants/Research Support: Hit-IQ (2022-2023); NIH NINDS (R01 NS110757 2019-2024); NINDS (U54 NS121688 2021-2026); UCLA Brain Injury Research Center, UCLA Steve Tisch Brain SPORT program, Easton Clinic for Brain Health Clinical Consultant (provide clinical care to athletes): NBA, NFL-Neurological Care Program, NHL/NHLPA, Los Angeles Lakers Advisory Board (Non compensated): Major League Soccer, National Basketball Association, US Soccer Federation. Advisory Board (Compensated): Highmark Interactive Medicolegal: One or two cases annually Speaker’s Bureau: None. Stock Shareholder: Highmark Interactive stock options (2018). Other Financial or Material Support: Book royalties – Blackwell/Wiley Publishing: Prioritized Neurological Differential Diagnosis Other: None. KMG has received grant funding from NFL for the NFL LONG study. He also serves on the NCAA Scientific Advisory Board in an unpaid capacity. KGH: Research Development Director, Pac-12 Conference Member, Pac-12 Brain Trauma Task Force Member, NFL Head Neck and Spine Committee Deputy Editor, British Journal of Sports Medicine Head Football Physician, University of Washington SH: Co-founder and senior advisor, The Sports Institute at UW Medicine Centers for Disease Control and Prevention and National Center for Injury Prevention and Control Board Pediatric Mild Traumatic Brain Injury Guideline Workgroup NCAA Concussion Safety Advisory Group Team Physician, Seattle Mariners Former Team Physician, Seattle Seahawks MM: Sport and exercise medicine physician working in private consulting practice. Shareholder of Olympic Park Sports Medicine Centre in Melbourne. Ex-senior physician at the Hawthorn Football Club (AFL) Ex-Chief Executive Officer of the AFL Doctors Association. Research grants received from the Australian Football League, outside the submitted work. Travel support received from the Australian Football League, FIFA and the International Olympic Committee to attend and present at international conferences. Member of the Scientific Committee for the 6th International Consensus Conference on Concussion in Sport. Honorary member of the International Concussion in Sport Group. Honorary member of the Australian Rugby Union Concussion Advisory Group. Independent Concussion Consultant for World Rugby. CLM reports no financial COI Volunteer positions: Concussion team physician, Shipley School Board of Trustees, American College of Sports Medicine Board of Directors, American Medical Society for Sports Medicine Board of Directors, Pediatric Research in Sports Medicine Executive Committee, Council on Sports Medicine and Fitness, American Academy of Pediatrics Advisory Board, Untold Foundation, Pink Concussions, Headway Foundation Editorial Board, Journal of Adolescent Health, Frontiers in Neuroergonomics, Exercise, Sport and Movement MMc: has received research funding to the Medical College of Wisconsin from the National Institutes of Health, Department of Veterans Affairs, Centers for Disease Control and Prevention, Department of Defense, National Collegiate Athletic Association, National Football League and Abbott Laboratories. He receives book royalties from Oxford University Press. He serves as clinical consultant to Milwaukee Bucks, Milwaukee Brewers and Green Bay Packers and is Co-Director of the NFL Neuropsychology Consultants without compensation. He serves as consultant for Neurotrauma Sciences, Inc. He receives travel support and speaker honorariums for professional activities. TCV is a paid member of the NFL Head, Neck and Spine Committee and an unpaid member of the USA Swimming Concussion Task Force. WPM: receives royalties from ABC-Clio publishing for the sale of the books, Kids, Sports and Concussion: A guide for coaches and parents, and Concussions; from Springer International for the book Head and Neck Injuries in Young Athlete; and from Wolters Kluwer for working as an author for UpToDate. His research is funded, in part, by philanthropic support from the National Hockey League Alumni Association through the Corey C Griffin Pro-Am Tournament and a grant from a grant from the National Football League. DN: CMO, Canadian Football League (CFL) Medical Director, Edmonton Oilers Hockey Club, National Hockey League Medial Director, Edmonton Elks Football Club, CFL. JP: Editor BJSM (honorarium), Member of World Rugby Concussion Advisory Group (unpaid), Independent Concussion Consultant for World Rugby (fee per consultation), Medical consultant to South African Rugby (unpaid), Co-chair of the Scientific Committee, 6th International Conference on Concussion in Sport (unpaid), Board member of the Concussion in Sport Group (unpaid), Scientific Board member, EyeGuideTM (unpaid). LKP: CASEM Board Member, President-Elect 2022-2023 NIH R34 Grant for EPICC Study (Eye Problems In Concussed Children), Site PI, Speaker at various conferences. MP declares the following: Consultant, CMO, Major League Soccer, Senior Advisor, NFL Head, Neck & Spine Committee, FA Research Task Force Committee member, UK Concussion Foundation Protocol Forum, US Soccer Medical Advisory Commioee, CDC Concussion Consultant, Concussion in Sport Group expert panel, NOCSAE Scientific Advisory Commioee, IOC Mental Health Working Group, USOPC Mental Health Advisory Committee, Team Physician, US Soccer, Received funding for research; NCAA-CARE-DoD 2.0, ended 2020, have received honoraria and reimbursement for travel for speaking and conferences attended, have written chapters for UpToDate and received royalties for the Netter’s Sports Medicine textbook, have provided work as an expert for cases involving concussion, team physician and other sports medicine topics. KJS: has received grant funding from the Canadian Institutes of Health Research, National Football League Scientific Advisory Board, International Olympic Committee Medical and Scientific Research Fund, World Rugby, Mitacs Accelerate, University of Calgary) with funds paid to her institution and not to her personally. She is an Associate Editor of BJSM (unpaid) and has received travel and accommodation support for meetings where she has presented. She is coordinating the writing of the systematic reviews that will inform the 6th International Consensus on Concussion in Sport, for which she has received an educational grant to assist with the administrative costs associated with the writing of the reviews. She is a member of the AFL Concussion Scientific Committee (unpaid position) and Brain Canada (unpaid positions). She works as a physiotherapy consultant and treats athletes of all levels of sport from grass roots to professional. SRW reports receipt of honorarium from the National Athletic Trainers' Association (NATA) for presentation and travel to the 2022 World Congress of the World Federation of Athletic Training and Therapy (WFATT). Dr Walton serves as the Chair of Marketing and Promotions for the WFATT and as a member of the Outcomes working group for the International Initiative for Traumatic Brain Injury Research (InTBIR). Dr Walton reports work on research projects funded by the National Football League (NFL), National Collegiate Athletic Association (NCAA), Department of Defense (DoD) and Department of Veterans Affairs in the United States and these entities do not oversee or provide input on his research or service efforts. KOY: is editor-in-chief of the journal Neuropsychology and receives an editorial stipend from the American Psychological Association. He is an unpaid consulting editor for the journals Archives of Clinical Neuropsychology and Journal of Head Trauma Rehabilitation. He is an unpaid member of the Scientific Advisory Committee for Brain Injury Canada. He is the chair of the Canadian Concussion Network, which is funded by a grant from Canadian Institutes of Health Research (CIHR) to his institution; he is principal applicant on the grant but receives no income from it. He is a principal investigator on another grant from CIHR from which he derives no income. He is a coinvestigator on research grants from CIHR, the US National Institutes of Health (NIH), Brain Canada Foundation and National Football League Scientific Advisory Board; he derives income only from the grant from NIH. He serves as a member of a CIHR grant review panel for which he receives a small honorarium. He receives book royalties from Guilford Press and Cambridge University Press. He has received travel support and honorarium for presentations to multiple organisations. He served or serves on the following committees/boards for which he received honorarium: 1. Independent Data Monitoring Committee (IDMC), Care for Post-Concussive Symptoms Effectiveness (CARE4PCS-2) Trial, National Institute for Child Health and Human Development 2. Observational Study Monitoring Board (OSMB), Approaches and Decisions in Acute Pediatric TBI (ADAPT) Trial, National Institute of Neurological Disorders and Stroke National Research Advisory Council, National Pediatric Rehabilitation Resource Center, Center for Pediatric Rehabilitation: Growing Research, Education and Sharing Science (C-PROGRESS), Virginia Tech University. RZ has current or past competitively-funded research grants from Canadian Institutes of Health Research (CIHR), National Institutes of Health (NIH), Health Canada, Ontario Neurotrauma Foundation (ONF), Ontario Ministry of Health, Physician Services Incorporated (PSI) Foundation, CHEO Foundation, University of Ottawa Brain and Mind Research Institute, Ontario Brain Institute (OBI) and Ontario SPOR Support Unit (OSSU) and the National Football League (NFL) Scientific Advisory Board. He holds Clinical Research Chair in Pediatric Concussion from University of Ottawa and is on the advisory board for Parachute Canada (a non-profit injury prevention charity) and the board of directors for the North American Brain Injury Society (unpaid). He is the co-founder, Scientific Director and a minority shareholder in 360 Concussion Care, an inter disciplinary concussion clinic.