Search PubMed⌕ Search

PubMed · 14693904

Missing cyclists.

Abstract

OBJECTIVES: (1) For crashes on a public road, to compare serious cyclist crashes involving a motor vehicle with cyclist crashes not involving a motor vehicle, in terms of threat to life and length of stay in hospital. (2) To determine the proportion of all serious crashes involving cyclists on public roads which are recorded by the police. (3) To determine the degree to which under-reporting of serious crashes involving cyclists and motor vehicles on public roads is associated with various demographic, environmental, and injury factors. STUDY DESIGN: Records for the period 1995-99, of cyclists seriously injured on a public road and hospitalised were linked to the traffic crash report (TCR) database maintained by Land Transport Safety Authority (LTSA). RESULTS: Of the 2925 cyclist crashes on public roads, only 652 (22%) could be linked to a TCR. Of the crashes involving motor vehicles (n = 1033), only 562 (54%) could be linked to the LTSA database. Age, ethnicity, injury severity, and cumulative length of stay were the only variables that predicted whether hospitalised cycle crash cases were more likely to have a corresponding TCR. There were substantial numbers of cyclist only crashes which typically are not captured in the TCR database. Nine percent of these resulted in serious or worse injury (that is, International Classification of Diseases/abbreviated injury scale score of 3+) and 7% resulted in hospital stays greater than seven days. CONCLUSION: Greater effort and precision needs to be applied to routinely document the burden of cyclist crashes, especially cyclist only crashes.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

J D Langley, N Dow, S Stephenson, K Kypri. 2003. Missing cyclists.. https://doi.org/10.1136/ip.9.4.376

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

[Clinical course and prognostic significance of immunological and functional parameters after severe trauma].

Generalized severe trauma leads to an increased incidence of SIRS, sepsis, and MOF. The aim of this prospective study was to investigate the immunological parameters in terms of their predictive value for multiple organ failure (MOF).HLA-DR expression on peripheral monocytes was analyzed by flow cytometry, the ex vivo endotoxin-stimulated TNFalpha synthesis of whole blood, and the serum levels of IL-6, IL-10, procalcitonin (PCT), and CRP were analyzed by ELISA in 16 severely injured patients with an ISS >25. Initially after trauma elevated serum levels of IL-6, IL-10, and PCT were found, while TNFalpha-producing capacity and HLA-DR expression on monocytes decreased. In patients with MOF a further decrease of HLA-DR expression on days 3-4 after injury was observed accompanied by elevated levels of IL-10 at this time point. However, the TNFalpha-producing capacity was even enhanced in patients with MOF in the 2nd week after trauma. Later PCT levels were also higher in patients with MOF.Monitoring of immunological parameters after severe injury is useful to identify mediator constellations that are associated with the development and clinical course of MOF even in extremely injured patients.

Abbreviated Injury Scale↗

Lateral automobile impacts and the risk of traumatic brain injury.

STUDY OBJECTIVES: We determine the relative risk and severity of traumatic brain injury among occupants of lateral impacts compared with occupants of nonlateral impacts. METHODS: This was a secondary analysis of the National Highway Traffic Safety Administration's National Automotive Sampling System, Crashworthiness Data Systems for 2000. Analysis was restricted to occupants of vehicles in which at least 1 person experienced an injury with Abbreviated Injury Scale score greater than 2. Traumatic brain injury was defined as an injury to the head or skull with an Abbreviated Injury Scale score greater than 2. Outcomes were analyzed using the chi2 test and multivariate logistic regression, with adjustment of variance to account for weighted probability sampling. RESULTS: Of the 1,115 occupants available for analysis, impact direction was lateral for 230 (18.42%) occupants and nonlateral for 885 (81.58%) occupants. One hundred eighty-seven (16.07%) occupants experienced a traumatic brain injury, 14.63% after lateral and 16.39% after nonlateral impact. The unadjusted relative risk of traumatic brain injury after lateral impact was 0.89 (95% confidence interval [CI] 0.51 to 1.56). After adjusting for several important crash-related variables, the relative risk of traumatic brain injury was 2.60 (95% CI 1.1 to 6.0). Traumatic brain injuries were more severe after lateral impact according to Abbreviated Injury Scale and Glasgow Coma Scale scores. The proportion of fatal or critical crash-related traumatic brain injuries attributable to lateral impact was 23.5%. CONCLUSION: Lateral impact is an important independent risk factor for the development of traumatic brain injury after a serious motor vehicle crash. Traumatic brain injuries incurred after lateral impact are more severe than those resulting from nonlateral impact. Vehicle modifications that increase head protection could reduce crash-related severe traumatic brain injuries by up to 61% and prevent up to 2,230 fatal or critical traumatic brain injuries each year in the United States.

Abbreviated Injury Scale↗

Access to inpatient rehabilitation after violence-related traumatic brain injury.

OBJECTIVES: To examine injury characteristics, demographics, and discharge disposition after traumatic brain injury of violent or nonviolent cause. DESIGN: Cohort study. SETTING: Level I trauma center. PARTICIPANTS: Patients (N=1807) admitted with a Head Abbreviated Injury Score (AIS) of 2 or more over a 2-year period. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Injury cause was classified as violent or nonviolent. Discharge disposition was classified as home, inpatient rehabilitation, skilled nursing facility (SNF), and other. RESULTS: The violence group was more likely to be male, to include individuals from diverse racial groups, to have an alcohol level above the legal limit, to have a more severe Head AIS, and to have Medicaid funding and equal access to inpatient rehabilitation compared with the nonviolence group. The violence group, though, was more likely to be discharged to home than to inpatient rehabilitation and more likely to be discharged to inpatient rehabilitation than to an SNF. The nonviolence group had a longer acute care length of stay and a higher rate of injuries to other body systems. CONCLUSIONS: People with violence-related injuries often present unique rehabilitation challenges. After accounting for injury severity and demographics, there was no evidence of bias against the violently injured in gaining access to inpatient rehabilitation services.

Abbreviated Injury Scale↗