A new statistical study published in JAMA Network Open estimates that three out of four former NFL players who died between 2008 and 2023 most likely had CTE. Researchers used statistical techniques to account for donation bias, finding the prevalence far exceeds the general population's 0.6% rate. Across nearly 400 donated brains, over 90% showed CTE signs, though experts caution this is likely an overestimate due to symptomatic donation patterns.
The study analyzed death records for 2,362 retired players, finding those with cognitive symptoms were about five times more likely to be donated. While the NFL strives to make the game safer, the findings sharpen the question of football's dangers. Zachary Binney, an epidemiologist at Oxford College of Emory University, called the work "pretty rigorous," noting the larger dataset and stronger methods.
The research highlights the progressive nature of CTE, linked to dementia and behavioral changes, and underscores the need for better prevention strategies given the high estimated prevalence among deceased former players.
Source: New York Times Top Stories · Summarized by HeadlinesBriefing