The Observer built a database to analyze the prevalence of concussions in the NFL using data from teams' final weekly injury reports, official NFL box scores and pro-football-reference.com.
Some findings from that analysis:
_Concussions caused more players (84) to be declared out during the regular season than any other injury, according to teams' final weekly injury reports. Ankle (81) and knee injuries (80) were the next most prevalent reasons.
_The Carolina Panthers tied for the most players forced out with a concussion (seven) and the most total games missed because of a concussion (22). This includes players on the injured reserve list and players ruled questionable and doubtful but not activated. That number does not include the three games Pro Bowl middle linebacker Luke Kuechly was held out of at the end of the season despite being cleared from the protocol.
_Indianapolis and Washington matched Carolina with seven players missing at least one game. Washington tied Carolina with 22 games missed.
_Six players missed 10 or more regular-season games because of a concussion. Of the 93 who missed games, 46 missed a single game.
_Nine teams _ including the Super Bowl-bound New England Patriots _ had just one player miss a game because of a concussion.
