Quantitative assessment of driving performance in Parkinson's disease

Wood, J. M., Worringham, C., Kerr, G., Mallon, K. and Silburn, P. (2005) Quantitative assessment of driving performance in Parkinson's disease. Journal of Neurology, Neurosurgery and Psychiatry, 76 2: 176-180. doi:10.1136/jnnp.2004.047118


Author Wood, J. M.
Worringham, C.
Kerr, G.
Mallon, K.
Silburn, P.
Title Quantitative assessment of driving performance in Parkinson's disease
Journal name Journal of Neurology, Neurosurgery and Psychiatry   Check publisher's open access policy
ISSN 0022-3050
1468-330X
Publication date 2005-02
Sub-type Article (original research)
DOI 10.1136/jnnp.2004.047118
Volume 76
Issue 2
Start page 176
End page 180
Total pages 5
Place of publication London, United Kingdom
Publisher BMJ Group
Language eng
Subject 1103 Clinical Sciences
Formatted abstract
Objectives:
The primary aim of this study was to determine how Parkinson’s disease (PD) affects driving performance. It also examined whether changes in driver safety were related to specific clinical disease markers or an individual’s self rating of driving ability.

Methods:
The driving performance of 25 patients with idiopathic PD and 21 age matched controls was assessed on a standardised open road route by an occupational therapist and driving instructor, to provide overall safety ratings and specific driving error scores.

Results:
The drivers with PD were rated as significantly less safe (p<0.05) than controls, and more than half of the drivers with PD would not have passed a state based driving test. The driver safety ratings were more strongly related to disease duration (r = −0.60) than to their on time Unified Parkinson’s Disease Rating Scale (r  = −0.24). Drivers with PD made significantly more errors than the control group during manoeuvres that involved changing lanes and lane keeping, monitoring their blind spot, reversing, car parking, and traffic light controlled intersections. The driving instructor also had to intervene to avoid an incident significantly more often for drivers with PD than for controls. Interestingly, driver safety ratings were unrelated to an individual’s rating of their own driving performance, and this was the case for all participants.

Conclusions:
As a group, drivers with PD are less safe to drive than age matched controls. Standard clinical markers cannot reliably predict driver safety. Further studies are required to ascertain whether the identified driving difficulties can be ameliorated.
Keyword Central nervous system disease
Degenerative disease
Extrapyramidal syndrome
Parkinson disease
Q-Index Code C1
Additional Notes This article has a correction: Please see: J Neurol Neurosurg Psychiatry 2005;76(3):458

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Medicine Publications
 
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Created: Fri, 15 Jan 2010, 15:28:41 EST by Jon Swabey on behalf of Faculty Of Health Sciences