The Sport Concussion Assessment Tool 3 Baseline Values for Professional Ice Hockey Players Objectives Results To determine baseline scores for the scoreable components of the Sport Concussion Assessment Tool – 3rd Edition (SCAT3) using a large sample of professional male ice hockey players. The mean age of the players was 25.3 years (SD=5.2). Players were Caucasian, 86% were Finnish. Average education was 12.4 (SD=1.9) years. A small percentage reported a history of learning disability (2.4%) or psychiatric problems (1.5%). The average number of concussions prior to testing was 1.2 [SD=1.4, range=0-12] and the reported mean time of recovery from the last concussion was 19.0 days (SD=48.4, range=0-547). 19.5% of the players had been hospitalized or medically imaged following head trauma. The most commonly endorsed symptoms on the Symptom Scale were: Neck pain (n=75, 25%), Fatigue (n=71, 23%), Trouble falling asleep (n=53, 17%). On the SAC, the most difficult components were concentration and delayed recall. Only 80 (26%) and 75 (25%) subjects performed flawlessly on these components, respectively. Methods The SCAT3 was administered as a preseason baseline test to 304 professional male ice hockey players from 14 teams in Finland. Background health history was obtained at the time of testing. The SCAT3 was administered individually to every player before or after team practice (at least 10 minutes after physical exertion). The testing was conducted by the team physiotherapist and/or physician. The scoreable components of the SCAT3 included: Symptom Score and Severity Standardized Assessment of Concussion (SAC) Coordination Score Modified Balance Error Scoring System (M-BESS) Tandem gait Table. Summary of the scoreable components of the SCAT3. * Spearman’s correlation between the variables was non-significant (r= -0.06, p=0.6).   Component Scale n Mean SD Md 95% CI Range Symptom Score 0-22 points 303 1.6 2.8 1.0 1.3-1.9 0-21.0 Symptom Severity 0-132 points 2.4 5.2 1.8-3.0 0-61.0 SAC 0-30 points 296 27.0 1.7 26.8-27.2 19-30.0 Orientation 0-5 points 299 4.9 0.3 5.0 4.9-5.0 3.0-5.0 Immediate memory 0-15 points 302 14.6 0.6 15.0 14.5-14.7 12.0-15.0 Concentration 298 3.9 0.9 4.0 3.8-4.0 2.0-5.0 Digits backward 0-4 points 304 2.9 0.8 3.0 2.8-3.0 1.0-4.0 Months in reverse order 0-1 points 0.2 0.9-1.0 0-1.0 Delayed recall 3.7 1.1 3.6-3.8 0-5.0 Coordination score 0.1 1.0-1.0 M-BESS* 0-30 errors 295 2.0 2.5 1.8-2.3 0-20.0 Double leg stance 0-10 errors Single leg stance 301 1.4 1.8 1.2-1.6 0-10.0 Tandem stance 1.5 0.4-0.8 Tandem gait* seconds 94 10.8 10.4-11.1 6.7-14.3 Conclusion This study provides baseline values for the SCAT3 among professional hockey players. Timo Hänninen MD1 Markku Tuominen MD2 Matti Vartiainen MSc3 Jari Parkkari MD, PhD1 Juha Öhman MD, PhD4 Grant L. Iverson PhD5 Teemu M. Luoto MD4 1Tampere Research Center of Sports Medicine, UKK Institute for Health Promotion Research, Tampere, Finland 2Medisport Inc, Tampere, Finland 3University of Helsinki, Helsinki, Finland 4Department of Neurosciences and Rehabilitation, Tampere University Hospital, Tampere, Finland 5Department of Physical Medicine and Rehabilitation, Harvard Medical School; & Red Sox Foundation and Massachusetts General Hospital Home Base Program, Boston, MA, USA For more info and contacts: