Evidence map›Paper›PMID 25564148›Full record

ArticleBMJ open2015

Severity of urban cycling injuries and the relationship with personal, trip, route and crash characteristics: analyses using four severity metrics.

Peter A Cripton, Hui Shen, Jeff R Brubacher, Mary Chipman, Steven M Friedman, M Anne Harris, Meghan Winters, Conor C O Reynolds, Michael D Cusimano, Shelina Babul and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
11.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 56 citations in OpenAlex.

  1. Hospitalizations After Bicycle Accidents: Injury Patterns, Severity and Costs.International journal of environmental research and public health · 2026
    Observational
  2. Severe and Fatal Cycling Crash Injury in Britain: Time to Make Urban Cycling Safer.Journal of urban health : bulletin of the New York Academy of Medicine · 2022
    Article
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  8. A scoping review on the relations between urban form and health: a focus on Canadian quantitative evidence.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2019
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 6 institutions in 3 countries.

Peter A CriptonDepartment of Mechanical Engineering, University of British Columbia, Vancouver, Canada.
Hui ShenSchool of Population and Public Health, University of British Columbia, Vancouver, Canada.
Jeff R BrubacherDepartment of Emergency Medicine, University of British Columbia, Vancouver, Canada.
Mary ChipmanDalla Lana School of Public Health, University of Toronto, Toronto, Canada.
Steven M FriedmanFaculty of Medicine, University of Toronto, Toronto, Canada University Health Network, Toronto, Canada.ORCID http://orcid.org/0000-0002-7871-3583
M Anne HarrisSchool of Occupational and Public Health, Ryerson University, Toronto, Canada.
Meghan WintersFaculty of Health Sciences, Simon Fraser University, Burnaby, Canada.
Conor C O ReynoldsInstitute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, Canada.
Michael D CusimanoDivision of Neurosurgery and Injury Prevention Research Office, Keenan Research Centre, St. Michael's Hospital, Toronto, Canada Departments of Surgery and Education and Public Health, University of Toronto, Toronto, Canada.
Shelina BabulDepartment of Pediatrics, University of British Columbia, Vancouver, Canada.
Kay TeschkeSchool of Population and Public Health, University of British Columbia, Vancouver, Canada.
University of British Columbia · CA3M (United States) · USSimon Fraser University · CASt. Michael's Hospital · CAToronto Metropolitan University · CAUniversity Health Network · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

objectiveTo examine the relationship between cycling injury severity and personal, trip, route and crash characteristics.

methodsData from a previous study of injury risk, conducted in Toronto and Vancouver, Canada, were used to classify injury severity using four metrics: (1) did not continue trip by bike; (2) transported to hospital by ambulance; (3) admitted to hospital; and (4) Canadian Triage and Acuity Scale (CTAS). Multiple logistic regression was used to examine associations with personal, trip, route and crash characteristics.

resultsOf 683 adults injured while cycling, 528 did not continue their trip by bike, 251 were transported by ambulance and 60 were admitted to hospital for further treatment. Treatment urgencies included 75 as CTAS=1 or 2 (most medically urgent), 284 as CTAS=3, and 320 as CTAS=4 or 5 (least medically urgent). Older age and collision with a motor vehicle were consistently associated with increased severity in all four metrics and statistically significant in three each (both variables with ambulance transport and CTAS; age with hospital admission; and motor vehicle collision with did not continue by bike). Other factors were consistently associated with more severe injuries, but statistically significant in one metric each: downhill grades; higher motor vehicle speeds; sidewalks (these significant for ambulance transport); multiuse paths and local streets (both significant for hospital admission).

conclusionsIn two of Canada's largest cities, about one-third of the bicycle crashes were collisions with motor vehicles and the resulting injuries were more severe than in other crash circumstances, underscoring the importance of separating cyclists from motor vehicle traffic. Our results also suggest that bicycling injury severity and injury risk would be reduced on facilities that minimise slopes, have lower vehicle speeds, and that are designed for bicycling rather than shared with pedestrians.

Indexed as

Accidents, TrafficBicyclingEnvironment DesignHospitalizationSeverity of Illness IndexUrban PopulationAdultAge FactorsCanadaCitiesFemaleHumansLogistic ModelsMaleMiddle AgedMotor VehiclesACCIDENT & EMERGENCY MEDICINEEPIDEMIOLOGYPUBLIC HEALTH

Identifiers

PMID25564148
PMCPMC4289714
OpenAlexW2105576583

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.