Long term bicycle related head injury trends for New South Wales, Australia following mandatory helmet legislation Olivier, Jake en_US Walter, Scott en_US Grzebieta, Raphael en_US 2021-11-25T12:25:33Z 2021-11-25T12:25:33Z 2012 en_US
dc.description.abstract Since the 1991 enactment of mandatory helmet legislation (MHL) for cyclists in New South Wales (NSW), Australia, there has been extensive debate as to its effect on head injury rates at a population level. Many previous studies have focused on the impact of MHL around the time of enactment, while little has been done to examine the ongoing effects. We aimed to extend prior work by investigating long-term trends in cyclist head and arm injuries over the period 1991–2010. The counts of cyclists hospitalised with head or arm injuries were jointly modelled with log-linear regression. The simultaneous modelling of related injury mechanisms avoids the need for actual exposure data and accounts for the effects of changes in the cycling environment, cycling behaviour and general safety improvements. Models were run separately with population counts, bicycle imports, the average weekday counts of cyclists in Sydney CBD and cycling estimates from survey data as proxy exposures. Overall, arm injuries were higher than head injuries throughout the study period, consistent with previous post-MHL observations. The trends in the two injury groups also significantly diverged, such that the gap between rates increased with time. The results suggest that the initial observed benefit of MHL has been maintained over the ensuing decades. There is a notable additional safety benefit after 2006 that is associated with an increase in cycling infrastructure spending. This implies that the effect of MHL is ongoing and progress in cycling safety in NSW has and will continue to benefit from focusing on broader issues such as increasing cycling infrastructure. en_US
dc.identifier.issn 0001-4575 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other bicycle infrastructure en_US
dc.subject.other bicycle helmet legislation en_US
dc.subject.other risk compensation en_US
dc.subject.other Australia en_US
dc.subject.other long term trends en_US
dc.title Long term bicycle related head injury trends for New South Wales, Australia following mandatory helmet legislation en_US
dc.type Journal Article en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.description.publisherStatement Journal website: en_US
unsw.relation.faculty Science
unsw.relation.faculty Medicine & Health
unsw.relation.ispartofjournal Accident Analysis and Prevention en_US
unsw.relation.originalPublicationAffiliation Olivier, Jake, Mathematics & Statistics, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Walter, Scott, Centre for Health Systems and Safety Research, Faculty of Medicine, UNSW en_US
unsw.relation.originalPublicationAffiliation Grzebieta, Raphael, Transport and Road Safety (TARS) Research, Faculty of Science, UNSW en_US School of Mathematics & Statistics * Centre for Big Data Research in Health * School of Aviation *
unsw.subject.fieldofresearchcode 111706 Epidemiology en_US
unsw.subject.fieldofresearchcode 111716 Preventive Medicine en_US
unsw.subject.fieldofresearchcode 111705 Environmental and Occupational Health and Safety en_US
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