Chronic traumatic encephalopathy and risk of suicide in former athletes

Background In the initial autopsy case studies of chronic traumatic encephalopathy (CTE), some researchers have concluded that the proteinopathy associated with CTE is the underlying cause of suicidality and completed suicide in former athletes. Methods A review of the literature on contact sports a...

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Bibliographic Details
Published inBritish journal of sports medicine Vol. 48; no. 2; pp. 162 - 164
Main Author Iverson, Grant L
Format Journal Article
LanguageEnglish
Published England BMJ Publishing Group 01.01.2014
BMJ Publishing Group LTD
Subjects
Athletes
Athletes (former)
Athletes - psychology
Brain Injury, Chronic - psychology
Concussion
Epidemiology
Humans
Mens health
Mental depression
Mental health
Neuropathology
Pain
Professional hockey
Researchers
Risk assessment
Risk Factors
Sports injuries
Sports medicine
Suicide
Suicides & suicide attempts
Concussion
Sporting injuries
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Summary:Background In the initial autopsy case studies of chronic traumatic encephalopathy (CTE), some researchers have concluded that the proteinopathy associated with CTE is the underlying cause of suicidality and completed suicide in former athletes. Methods A review of the literature on contact sports and risk of completed suicide revealed only one epidemiological study with direct relevant data. Results There are no published cross-sectional, epidemiological or prospective studies showing a relation between contact sports and risk of suicide. One published epidemiological study suggests that retired National Football League players have lower rates of death by suicide than the general population. Outside of sports, there is a mature body of evidence suggesting that the causes of suicide are complex, multifactorial and difficult to predict in individual cases. Conclusions Future research might establish a clear causal connection between the proteinopathy of CTE and suicide. At present, however, there is insufficient scientific evidence to conclude that there is a strong causal relationship between the presence of these proteinopathies and suicide in former athletes. Additional research is needed to determine the extent to which the neuropathology of CTE is a possible mediator or moderator variable associated with suicide.
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ISSN:0306-3674
1473-0480
DOI:10.1136/bjsports-2013-092935