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Predictors of driving assessment outcome in Parkinson's Disease

Worringham, Charles J., Wood, Joanne M., Kerr, Graham K., & Silburn, Peter A. (2006) Predictors of driving assessment outcome in Parkinson's Disease. Movement Disorders, 21(2), pp. 230-235.

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Abstract

This study evaluated selected clinical and functional tests as predictors of driving safety outcomes in Parkinson's Disease (PD) patients. Twenty five PD patients and 21 age-matched controls, all regular drivers, underwent neurological evaluation and assessment of cognitive, visual and motor function and a standardised, on-road driving assessment. The capacity of the tests to predict pass/fail driving outcomes was determined by selecting a sub-set with the highest predictive value from each domain and then subjecting these to discriminant function analysis. Accuracy, sensitivity, specificity and positive and negative predictive values were determined. Three relatively simple tests from the larger battery predicted passes with relatively high sensitivity (PD: 72.7%, controls: 93.8%, both combined: 85.2%); and moderate specificity (PD: 64.3%, controls: 60.0%, both combined: 63.2%). These tests assessed motor performance (Purdue Pegboard test), contrast sensitivity (Pelli-Robson test) and cognitive function (verbal version of Symbol Digit Modalities Test). Adding time since diagnosis for the PD group increased sensitivity to 90.9% and specificity to 71.4 %. These simple tests confer more objectivity and predictive power to clinical recommendations for driving, they reflect distinct functions that are necessary for safe driving, and may be especially useful when on-road assessments are not feasible.

Impact and interest:

38 citations in Scopus
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30 citations in Web of Science®

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407 since deposited on 20 Jul 2006
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ID Code: 1744
Item Type: Journal Article
Keywords: Parkinson's disease, vision, psychomotor performance, cognition, driving, prediction, predictors, risk factors, assessment, driving test
DOI: 10.1002/mds.20709
ISSN: 0885-3185
Subjects: Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000) > PSYCHOLOGY (170100) > Sensory Processes Perception and Performance (170112)
Australian and New Zealand Standard Research Classification > COMMERCE MANAGEMENT TOURISM AND SERVICES (150000) > TRANSPORTATION AND FREIGHT SERVICES (150700) > Road Transportation and Freight Services (150703)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NEUROSCIENCES (110900) > Central Nervous System (110903)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NEUROSCIENCES (110900) > Neurology and Neuromuscular Diseases (110904)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600) > Motor Control (110603)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Current > Schools > School of Optometry & Vision Science
Copyright Owner: Copyright 2005 John Wiley & Sons
Copyright Statement: The definite version is available on publication at www3.interscience.wiley.com
Deposited On: 20 Jul 2006
Last Modified: 29 Feb 2012 23:24

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