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Motor vehicle crashes and drivers with DAT

D B Carr1

  • 1Division of Geriatrics and Gerontology, Washington University, St Louis, Missouri 63108, USA.

Alzheimer Disease and Associated Disorders
|June 1, 1997
PubMed
Summary

Drivers with dementia, particularly dementia of the Alzheimer type (DAT), show an increased risk for motor vehicle crashes. This risk escalates with continued driving post-diagnosis, with males being more vulnerable.

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Area of Science:

  • Gerontology
  • Neurology
  • Public Health

Background:

  • The aging population is experiencing a rise in dementia diagnoses.
  • Concerns exist regarding the public safety implications of driving with dementia.
  • Alzheimer's disease is a common form of dementia affecting cognitive functions.

Purpose of the Study:

  • To review and analyze recent studies on motor vehicle crashes involving drivers with dementia.
  • To identify common findings, strengths, and limitations in existing research.
  • To highlight key risk factors associated with driving and dementia.

Main Methods:

  • Systematic review of recent literature on dementia and driving crashes.
  • Analysis of study findings for common trends and statistical significance.
  • Evaluation of study methodologies and limitations.

Main Results:

  • Multiple studies indicate a higher crash rate among drivers with dementia of the Alzheimer type (DAT) compared to their non-demented peers.
  • Approximately 50% of DAT drivers cease driving within three years of symptom onset.
  • Crash risk increases with the duration of driving after dementia onset; male drivers face higher risks.
  • Dementia severity does not directly correlate with crash risk, but co-existing medical conditions can exacerbate it.

Conclusions:

  • Drivers with dementia, especially DAT, present a heightened risk for motor vehicle accidents.
  • Driving cessation timelines and risk factors like male gender and driving duration are critical considerations.
  • Further research is needed to fully understand and mitigate crash risks associated with driving and dementia.

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