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Study estimates 75% of NFL players who died in 2008-2023 had CTE

A Boston University study in JAMA Network Open estimates about 75% of more than 2,300 NFL players who died from 2008 to 2023 had signs of CTE.

Posted Updated (4 d ago)

A study published Wednesday in JAMA Network Open estimates that roughly 75% of former NFL players who died from 2008 through 2023 had chronic traumatic encephalopathy, or CTE. Fox News says the study covered more than 2,300 deceased players. The Guardian puts the number at 2,362.

CBS News says the study comes from Boston University. It quotes Yorghos Tripodis, a Boston University professor of biostatistics, in its coverage. The Guardian describes the research team as Boston-based.

The Guardian says the estimated CTE rate among these players was substantially higher than rates found in brain samples from the general population. NBC News reports the 75% estimate is the highest to date.

Fox News describes CTE as a degenerative brain disease linked to repeated head trauma in football. Its headline says the players had at least some degree of the disease.

Outlets word the figure differently. NBC News and The Guardian say an estimated 75%. CBS News has used both "nearly 75%" and 75%. Fox News says roughly 75%.

Reported by

  1. NBC NewsStudy estimates 75% of NFL players who died over 15-year span may have had CTEWed, Oct 28, 11:01 AM EDT
  2. CBS NewsNearly 75% of ex-NFL players who died from 2008-2023 had CTE, study findsWed, Oct 28, 11:06 AM EDT
  3. The GuardianNew study estimates 75% of deceased ex-NFL players had brain disease CTEWed, Oct 28, 2:04 PM EDT
  4. CBS NewsExperts react to new findings on CTE in former NFL playersWed, Oct 28, 5:36 PM EDT
  5. CBS NewsStudy estimates 75% of NFL players who died in recent years had signs of CTEWed, Oct 28, 8:25 PM EDT
  6. Fox NewsStudy finds roughly 75% of deceased NFL players had at least some degree of CTE brain diseaseThu, Oct 29, 1:34 PM EDT

This story was written by AI using only the reports listed above, and published without a person reviewing it first. It is rewritten as new reports arrive. Read the original reporting for full detail. Spot an error? Tell us.

Earlier versions (2)
  1. Wed, Oct 28, 2:10 PM EDT, 3 outlets: Study estimates 75% of NFL players who died in 2008-2023 had CTE
  2. Wed, Oct 28, 11:15 AM EDT, 2 outlets: Study: about 75% of NFL players who died in 2008-2023 had CTE