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PLoS One. 2016 Feb 24;11(2):e0149566. doi: 10.1371/journal.pone.0149566. eCollection 2016.

Prediction of Fitness to Drive in Patients with Alzheimer's Dementia.

Author information

1
Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands.
2
SWOV Institute for Road Safety Research, The Hague, the Netherlands.
3
CBR Dutch driving test organisation, Rijswijk, the Netherlands.
4
Department of Neurology, Alzheimer Center, VU University Medical Center, Amsterdam, the Netherlands.
5
Department of Neuropsychology & Psychopharmacology, Maastricht University, Maastricht, the Netherlands.
6
Department of Psychiatry and Neuropsychology, School of Mental Health and Neurosciences (MHeNS), Maastricht University, Maastricht, the Netherlands.
7
Department of Neurology, University Medical Center Groningen, Groningen, the Netherlands.

Abstract

The number of patients with Alzheimer's disease (AD) is increasing and so is the number of patients driving a car. To enable patients to retain their mobility while at the same time not endangering public safety, each patient should be assessed for fitness to drive. The aim of this study is to develop a method to assess fitness to drive in a clinical setting, using three types of assessments, i.e. clinical interviews, neuropsychological assessment and driving simulator rides. The goals are (1) to determine for each type of assessment which combination of measures is most predictive for on-road driving performance, (2) to compare the predictive value of clinical interviews, neuropsychological assessment and driving simulator evaluation and (3) to determine which combination of these assessments provides the best prediction of fitness to drive. Eighty-one patients with AD and 45 healthy individuals participated. All participated in a clinical interview, and were administered a neuropsychological test battery and a driving simulator ride (predictors). The criterion fitness to drive was determined in an on-road driving assessment by experts of the CBR Dutch driving test organisation according to their official protocol. The validity of the predictors to determine fitness to drive was explored by means of logistic regression analyses, discriminant function analyses, as well as receiver operating curve analyses. We found that all three types of assessments are predictive of on-road driving performance. Neuropsychological assessment had the highest classification accuracy followed by driving simulator rides and clinical interviews. However, combining all three types of assessments yielded the best prediction for fitness to drive in patients with AD with an overall accuracy of 92.7%, which makes this method highly valid for assessing fitness to drive in AD. This method may be used to advise patients with AD and their family members about fitness to drive.

PMID:
26910535
PMCID:
PMC4766198
DOI:
10.1371/journal.pone.0149566
[Indexed for MEDLINE]
Free PMC Article
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