https://www.siliconvalley.com/2023/02/07/boston-university-researchers-find-cte-in-345-of-376-former-nfl-players/

Boston University researchers say they have now diagnosed 345 former NFL players with chronic traumatic encephalopathy (CTE) out of 376 former players studied.

In comparison to that 91.7% CTE rate of studied former NFL players, a past BU study of 164 brains of men and women found that only 1 of 164 (0.6%) had CTE. The lone CTE case was a former college football player.