Journal article
Road safety in drivers with Parkinson disease
Neurology, Vol.73(24), pp.2112-2119
12/15/2009
DOI: 10.1212/WNL.0b013e3181c67b77
PMCID: PMC2790224
PMID: 20018639
Abstract
To assess road safety and its predictors in drivers with Parkinson disease (PD).
Licensed, active drivers with PD (n = 84; age = 67.3 +/- 7.8, median Hoehn & Yahr stage II) and controls (n = 182; age = 67.6 +/- 7.5) underwent cognitive, visual, and motor tests, and drove a standardized route in urban and rural settings in an instrumented vehicle. Safety errors were judged and documented by a driving expert based on video data review.
Drivers with PD committed more total safety errors compared to controls (41.6 +/- 14.6 vs 32.9 +/- 12.3, p < 0.0001); 77.4% of drivers with PD committed more errors than the median total error count of the controls (medians: PD = 39.5, controls = 31.0). Lane violations were the most common error category in both groups. Group differences in some error categories became insignificant after results were adjusted for demographics and familiarity with the local driving environment. The PD group performed worse on tests of motor, cognitive, and visual abilities. Within the PD group, older age and worse performances on tests of visual acuity, contrast sensitivity, attention, visuospatial abilities, visual memory, and general cognition predicted error counts. Measures of visual processing speed and attention and far visual acuity were jointly predictive of error counts in a multivariate model.
Overall, drivers with Parkinson disease (PD) had poorer road safety compared to controls, but there was considerable variability among the drivers with PD, and some performed normally. Familiarity with the driving environment was a mitigating factor against unsafe driving in PD. Impairments in visual perception and cognition were associated with road safety errors in drivers with PD.
Details
- Title: Subtitle
- Road safety in drivers with Parkinson disease
- Creators
- E Y Uc - Department of Neurology, University of Iowa, Carver College of Medicine, 200 Hawkins Drive-2RCP, Iowa City, IA 52242, USA. ergun-uc@uiowa.eduM RizzoA M JohnsonE DastrupS W AndersonJ D Dawson
- Resource Type
- Journal article
- Publication Details
- Neurology, Vol.73(24), pp.2112-2119
- DOI
- 10.1212/WNL.0b013e3181c67b77
- PMID
- 20018639
- PMCID
- PMC2790224
- NLM abbreviation
- Neurology
- ISSN
- 0028-3878
- eISSN
- 1526-632X
- Publisher
- United States
- Grant note
- HL070740 / NHLBI NIH HHS AI053034 / NIAID NIH HHS R01 HL070740 / National Heart, Lung, and Blood Institute R01 AG017177 / National Institute on Aging R01 AG 17717 / NIA NIH HHS AG17177 / NIA NIH HHS AG026027 / NIA NIH HHS R37 HL061857 / National Heart, Lung, and Blood Institute R21 HL087761 / National Heart, Lung, and Blood Institute R01 AG026027 / National Institute on Aging P01 NS019632 / National Institute of Neurological Disorders and Stroke HL54730 / NHLBI NIH HHS R01 AG 15071 / NIA NIH HHS HL61857 / NHLBI NIH HHS HL082711 / NHLBI NIH HHS P01 NS19632 / NINDS NIH HHS HL087761 / NHLBI NIH HHS R01 AG015071 / National Institute on Aging R01 NS044930 / National Institute of Neurological Disorders and Stroke AG15071 / NIA NIH HHS NS044930 / NINDS NIH HHS R01 HL054730 / National Heart, Lung, and Blood Institute
- Language
- English
- Date published
- 12/15/2009
- Academic Unit
- Neurology; Public Health Administration; Biostatistics
- Record Identifier
- 9983997448102771
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