The Addenbrooke's Cognitive Examination Revised as a potential screening test for elderly drivers

Area of Science:

• Gerontology
• Neuropsychology
• Traffic Safety

Background:

• Neuropsychological tests predict driving ability, but the Mini-Mental State Examination (MMSE) has limitations for assessing older drivers.
• Existing screening tools may not adequately identify non-demented individuals at risk for unsafe driving.
• The Addenbrooke's Cognitive Examination Revised (ACE-R) has not been previously evaluated for its utility in driving ability assessments.

Purpose of the Study:

• To evaluate the Addenbrooke's Cognitive Examination Revised (ACE-R) as a screening tool for driving ability in older adults.
• To compare the classification accuracy of the ACE-R with the Mini-Mental State Examination (MMSE) in identifying unsafe drivers.
• To determine if visuospatial and executive functions measured by the ACE-R improve driving impairment prediction.

Main Methods:

• Fifty older drivers (mean age 73.1 years) referred for psychological assessment participated.
• Participants underwent an on-road driving test as part of their assessment protocol.
• Linear discriminant analyses were used to compare the predictive accuracy of the ACE-R and MMSE scores.

Main Results:

• The ACE-R demonstrated higher classification accuracy than the MMSE in identifying unsafe drivers.
• Measures of visuospatial and executive functions, included in the ACE-R but not the MMSE, significantly improved the prediction of driving ability.
• The ACE-R shows promise as a more effective cognitive screening instrument for older drivers.

Conclusions:

• The Addenbrooke's Cognitive Examination Revised (ACE-R) is a potentially valuable tool for assessing driving fitness in older adults.
• The ACE-R may offer superior accuracy compared to the MMSE for identifying older drivers who pose a safety risk.
• Further research is warranted to validate the ACE-R for routine use in driving ability evaluations.