Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Proportion of males with combined CTE pathology in individuals who did not play football (white bars), who played youth or high school football only (blue bars), or who played football beyond high school (red bars) in the overall group and also in subgroups based on other sports played.
