• Michael M Dinh, Christopher Kastelein, Kendall J Bein, Timothy C Green, Tanya Bautovich, and Rebecca Ivers.
• Department of Trauma Services, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.
• Emerg Med Australas. 2015 Aug 1;27(4):343-7.

ObjectivesTo describe population-based trends in cycling-related presentations to EDs over the past decade.MethodsA retrospective cohort of road trauma patients (motor vehicle, motor cyclist, cyclist and pedestrian) presenting to EDs in the Sydney Greater Metropolitan Area between 2004 and 2013 was obtained using the Public Health Real-time Emergency Department Surveillance System. The outcomes of interest were the cycling-related ED presentation rate per 1000 population, as well as the proportion of cycling-related presentations that died in ED or were admitted to a critical care ward. Trends in ED presentation rates based on presentation counts and Sydney population data were plotted and described.ResultsThere were 68,438 cycling-related presentations identified, representing 30% of all road trauma patients presenting to EDs in Sydney. There was a 91% increase in cycling-related presentations for the 35 to 64-year-old age group and a 123% increase in cycling-related presentations in the 65-year-old and over age group. All other age groups were associated with a stable or decrease in cycling-related ED presentation rates. The proportion of presentations requiring critical care ward admission or death in ED has decreased by 20%.ConclusionUsing an ED syndromic surveillance system, cycling-related ED presentation rates in Sydney Australia have increased in those aged 35 years and over the past 10 years, with a relative decrease in the proportion of deaths in ED or those requiring critical care admission.© 2015 Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

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