This interactive data visualization shows the distribution of NFL concussions during the last four seasons by collision source including another helmet, body part, and playing surface. The user can hover over the stacked bar chart on the left or player heat map on the right to filter the four-year trend and see additional information.
The data source for this visualization is the data from the 618 concussions that occurred during the NFL regular season from 2012 – 2015. The pieces of data are provided by the 2015 NFL Injury Data report from NFL Communications. You can view the original data source by clicking in the bottom left corner of the visualization.