Cited by 346Traumatic Brain Injury ResearchTraumatic Brain Injury and Neurovascular DisturbancesDementia and Cognitive Impairment Research

Dementia Resulting From Traumatic Brain Injury: What Is the Pathology?

Open access
Shively, Sharon, Scher, Ann I., Perl, Daniel P., Diaz-Arrastia, Ramon·2012·Archives of Neurology

Abstract

Traumatic brain injury (TBI) is among the earliest illnesses described in human history and remains a major source of morbidity and mortality in the modern era. It is estimated that 2% of the US population lives with long-term disabilities due to a prior TBI, and incidence and prevalence rates are even higher in developing countries. One of the most feared long-term consequences of TBIs is dementia, as multiple epidemiologic studies show that experiencing a TBI in early or midlife is associated with an increased risk of dementia in late life. The best data indicate that moderate and severe TBIs increase risk of dementia between 2- and 4-fold. It is less clear whether mild TBIs such as brief concussions result in increased dementia risk, in part because mild head injuries are often not well documented and retrospective studies have recall bias. However, it has been observed for many years that multiple mild TBIs as experienced by professional boxers are associated with a high risk of chronic traumatic encephalopathy (CTE), a type of dementia with distinctive clinical and pathologic features. The recent recognition that CTE is common in retired professional football and hockey players has rekindled interest in this condition, as has the recognition that military personnel also experience high rates of mild TBIs and may have a similar syndrome. It is presently unknown whether dementia in TBI survivors is pathophysiologically similar to Alzheimer disease, CTE, or some other entity. Such information is critical for developing preventive and treatment strategies for a common cause of acquired dementia. Herein, we will review the epidemiologic data linking TBI and dementia, existing clinical and pathologic data, and will identify areas where future research is needed.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1001/archneurol.2011.3747

Cites

44 of 44 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Moderate and severe TBIs increase risk of dementia between 2- and 4-fold compared with risk among individuals without a history of moderate or severe TBI.

    “Moderate and severe TBIs increase risk of dementia between 2‐ and 4‐fold compared with risk among individuals without a history of moderate or severe TBI.”

    From 2024 Alzheimer's disease facts and figures (2024) · cites this paper as [199]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [11]Institute of Medicine Committee on Gulf War and Health Gulf War and Health 7 Long-Term Consequences of Traumatic Brain Injury Washington, DC National Academies Press 2009 25009909
  2. [13]Kahn HA Sempos CT Attributable Risk: Statistical Methods in Epidemiology New York, NY Oxford University Press 1989 72 84

Cited by

Sorted by citations

Authors
Shively, S., Scher, A. I., Perl, D. P., & Diaz-Arrastia, R.
Affiliations
  • Uniformed Services University of the Health Sciences (US)
  • Henry M. Jackson Foundation (US)
Corresponding author
Diaz-Arrastia, Ramon
Venue
Archives of Neurology
Published
2012-10-01
Volume
69
Issue
10
Pages
1245-51
ISSN
0003-9942 (ISSN-L)
OpenAlex
W2135488666
Cited by
346
References
44
Citations by year
2026: 14 · 2025: 28 · 2024: 35 · 2023: 26 · 2022: 36 · 2021: 11 · 2020: 28 · 2019: 29 · 2018: 22 · 2017: 21 · 2016: 26 · 2015: 17 · 2014: 28 · 2013: 23 · 2012: 2
FWCI
16.76
Type
journal article
Language
en
Open access
Locations
  • Archives of Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (Z99 NS999999)
  • U.S. Public Health Service (H133 A020526)
  • National Institute on Aging (P50 AG 05138, P01 AG 02219, P30AG012300, P50AG005138, P30AG-12300, P01AG002219)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD048179)
Topics
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
traumatic brain injury, dementia, chronic traumatic encephalopathy, mild traumatic brain injury, concussion, professional boxers, professional football players, military personnel, dementia risk, Alzheimer's disease, dementia epidemiology
MeSH terms
Brain Injuries, Combat Disorders, Dementia, Humans, Risk Factors, Neurodegenerative Diseases

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review