Motor vehicle crashes and dementia: A population-based study

OBJECTIVES: To compare the frequency of motor vehicle crashes of drivers aged 50 and older with a diagnosis of dementia with that of a group without dementia in the 3 years before and 3 years after an index hospital admission using the Western Australian Data Linkage System (WADLS). DESIGN: Retros...

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Main Authors:	Meuleners, Lynn, Ng, J., Chow, K., Stevenson, M.
Format:	Journal Article
Published:	Wiley-Blackwell Publishing, Inc. 2016
Online Access:	http://hdl.handle.net/20.500.11937/24892

id	curtin-20.500.11937-24892
recordtype	eprints
spelling	curtin-20.500.11937-248922018-08-08T04:55:42Z Motor vehicle crashes and dementia: A population-based study Meuleners, Lynn Ng, J. Chow, K. Stevenson, M. OBJECTIVES: To compare the frequency of motor vehicle crashes of drivers aged 50 and older with a diagnosis of dementia with that of a group without dementia in the 3 years before and 3 years after an index hospital admission using the Western Australian Data Linkage System (WADLS). DESIGN: Retrospective population-based study. SETTING: De-identified data were obtained from Western Australian Hospital Morbidity Data System and the Western Australian Death Registrations using the WADLS from 2004 to 2010. The Integrated Road Information System was used to identify individuals involved in a crash as the driver from 2001 to 2013. PARTICIPANTS: Individuals with dementia with an index hospital admission (n = 1,666, 34%) and individuals without dementia (n = 3,636, 66%) who had been involved in at least one motor vehicle crash as the driver from 2001 to 2013. MEASUREMENTS: Involvement in a police-reported crash as the driver. RESULTS: The occurrence of one or more crashes as the driver in the dementia group (43% had a crash as the driver) was higher in the 3 years before the index hospitalization than in the comparison group (30% had a crash as the driver). The risk of a crash was 93% less for those with dementia in the 3 years after an index hospital admission with dementia than for those without dementia (incidence rate ratio = 0.07, 95% confidence interval = 0.06-0.09) compared to the previous 3 years, after adjusting for relevant confounders. CONCLUSION: Although older drivers may give up driving after a diagnosis of dementia, they may be at greater risk of crashing before diagnosis or in the early stages of dementia. Better methods are needed to identify at-risk drivers with early dementia and prevent crashes. 2016 Journal Article http://hdl.handle.net/20.500.11937/24892 10.1111/jgs.14109 Wiley-Blackwell Publishing, Inc. fulltext
repository_type	Digital Repository
institution_category	Local University
institution	Curtin University Malaysia
building	Curtin Institutional Repository
collection	Online Access
description	OBJECTIVES: To compare the frequency of motor vehicle crashes of drivers aged 50 and older with a diagnosis of dementia with that of a group without dementia in the 3 years before and 3 years after an index hospital admission using the Western Australian Data Linkage System (WADLS). DESIGN: Retrospective population-based study. SETTING: De-identified data were obtained from Western Australian Hospital Morbidity Data System and the Western Australian Death Registrations using the WADLS from 2004 to 2010. The Integrated Road Information System was used to identify individuals involved in a crash as the driver from 2001 to 2013. PARTICIPANTS: Individuals with dementia with an index hospital admission (n = 1,666, 34%) and individuals without dementia (n = 3,636, 66%) who had been involved in at least one motor vehicle crash as the driver from 2001 to 2013. MEASUREMENTS: Involvement in a police-reported crash as the driver. RESULTS: The occurrence of one or more crashes as the driver in the dementia group (43% had a crash as the driver) was higher in the 3 years before the index hospitalization than in the comparison group (30% had a crash as the driver). The risk of a crash was 93% less for those with dementia in the 3 years after an index hospital admission with dementia than for those without dementia (incidence rate ratio = 0.07, 95% confidence interval = 0.06-0.09) compared to the previous 3 years, after adjusting for relevant confounders. CONCLUSION: Although older drivers may give up driving after a diagnosis of dementia, they may be at greater risk of crashing before diagnosis or in the early stages of dementia. Better methods are needed to identify at-risk drivers with early dementia and prevent crashes.
format	Journal Article
author	Meuleners, Lynn Ng, J. Chow, K. Stevenson, M.
spellingShingle	Meuleners, Lynn Ng, J. Chow, K. Stevenson, M. Motor vehicle crashes and dementia: A population-based study
author_facet	Meuleners, Lynn Ng, J. Chow, K. Stevenson, M.
author_sort	Meuleners, Lynn
title	Motor vehicle crashes and dementia: A population-based study
title_short	Motor vehicle crashes and dementia: A population-based study
title_full	Motor vehicle crashes and dementia: A population-based study
title_fullStr	Motor vehicle crashes and dementia: A population-based study
title_full_unstemmed	Motor vehicle crashes and dementia: A population-based study
title_sort	motor vehicle crashes and dementia: a population-based study
publisher	Wiley-Blackwell Publishing, Inc.
publishDate	2016
url	http://hdl.handle.net/20.500.11937/24892
first_indexed	2018-09-06T20:48:47Z
last_indexed	2018-09-06T20:48:47Z
_version_	1610892630046015488

Motor vehicle crashes and dementia: A population-based study

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