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J Am Geriatr Soc. 2005 May;53(5):829-33.

Clinician assessment of the driving competence of patients with dementia.

Author information

1
Department of Clinical Neurosciences, Brown University, Providence, Rhode Island, USA. Brian_Ott@mhri.org

Abstract

OBJECTIVES:

To determine the validity and reliability of clinician ratings of the driving competence of patients with mild dementia.

DESIGN:

Observational study of a cross-section of drivers with mild dementia based on chart review by clinicians with varying types of expertise and experience.

SETTING:

Outpatient dementia clinic.

PARTICIPANTS:

Fifty dementia subjects from a longitudinal study of driving and dementia.

MEASUREMENTS:

Each clinician reviewed information from the clinic charts and the first study visit. The clinician then rated the drivers as safe, marginal, or unsafe. A professional driving instructor compared these ratings with total driving scores on a standardized road test and categorical ratings of driving competence. Clinicians also completed a visual analog scale assessment of variables that led to their determinations of driving competence.

RESULTS:

Accuracy of clinician ratings ranged from 62% to 78% for the instructor's global rating of safe versus marginal or unsafe. In general, there was moderate accuracy and interrater reliability. Accuracy could have been improved in the least-accurate raters by greater attention to dementia duration and severity ratings, as well as less reliance on the history and physical examination. The most accurate predictors were clinicians specially trained in dementia assessment, who were not necessarily the most experienced in their years of clinical experience.

CONCLUSION:

Although a clinician may be able to identify many potentially hazardous drivers, accuracy is insufficient to suggest that a clinician's assessment alone is adequate to determine driving competence in those with mild dementia.

PMID:
15877559
PMCID:
PMC3292185
DOI:
10.1111/j.1532-5415.2005.53265.x
[Indexed for MEDLINE]
Free PMC Article
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