Epidemiology of Sports Concussion in the United States — An Excerpt from Sports Neurology, Volume 158 (Handbook of Clinical Neurology)

(Editor’s Note: What follows is an excerpt from a recent released book written by Dr. Brian Hainline, the Chief Medical Officer of the NCAA, and Dr. Robert Stern. The book can be purchased at https://www.elsevier.com/books/sports-neurology/hainline/978-0-444-63954-7, or https://www.amazon.com/Sports-Neurology-158-Handbook-Clinical/dp/0444639543)   Chapter 7: Epidemiology of sports concussion in the United States   By GRANT T. BALDWIN and MATTHEW J. BREIDING (National Center for Injur