Evidence map›Paper›PMID 31871261›Full record

ArticleBMJ open2019

Injury from electric scooters in Copenhagen: a retrospective cohort study.

Stig Nikolaj Fasmer Blomberg, Oscar Carl Moeller Rosenkrantz, Freddy Lippert, Helle Collatz Christensen

Registry-linked trialAbstract read
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04960020 (A New Etiological Cause for Anterior Cruciate Ligament Injury), which is not on this map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
–field-weighted citation impact
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.

NCT04960020 completednot on this map

A New Etiological Cause for Anterior Cruciate Ligament Injury: E-Scooter

TypeobservationalSponsorProf. Dr. Cemil Tascıoglu Education and Research Hospital OrganizationRan2019 to 2021Enrolled680ConditionsAnterior Cruciate Ligament TearArmsRetrospective Data Review
3 · Its place in the literature

Who cites it

61 citing papers in PubMed.

  1. Review
  2. Review
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  5. Review
  6. Article
  7. Alcohol and electric scooter injuries in an emergency department: a prospective observational study.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025
    Observational
  8. Article
  9. Retrospective Study to Compare Injury Patterns and Associations in 170 Patients Following Electric Scooter and Bicycle Accidents in Turkey.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Article
  10. Orthopedic Injuries Caused by Electric Scooters: A Systematic Review.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2025
    Review
  11. Review
  12. Continuously increasing e-scooter accidents and their possible prevention in a large European city.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Article
  13. Article
  14. Article
  15. Observational
  16. Unconventional mobility, conventional trauma: a comparative analysis of e-scooter-related fractures.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Article
  17. Article
  18. Article
  19. Article
  20. Article

1 more citing papers are in PubMed but not listed here.

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

4 authors.

Stig Nikolaj Fasmer BlombergEmergency Medical Services, University of Copenhagen, Region Hovedstaden (Capital Region of Denmark), Copenhagen, Denmark stig.nikolaj.fasmer.blomberg@regionh.dk.ORCID 0000-0002-5073-6820
Oscar Carl Moeller RosenkrantzEmergency Medical Services, University of Copenhagen, Region Hovedstaden (Capital Region of Denmark), Copenhagen, Denmark.
Freddy LippertEmergency Medical Services, University of Copenhagen, Region Hovedstaden (Capital Region of Denmark), Copenhagen, Denmark.
Helle Collatz ChristensenEmergency Medical Services, University of Copenhagen, Region Hovedstaden (Capital Region of Denmark), Copenhagen, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo analyse injuries related to manual and electric scooter use from January 2016 up to and including July 2019.

settingElectric scooter rental services were launched in Denmark in January 2019. The services were provided by private companies. Although rules for handling and riding scooters have been established, no reports either before or after introduction of electric scooters anticipated the full extent of use, and injuries to riders and pedestrians.

participantsAll patient records mentioning manual or electric scooters. Records were reviewed, and data were stratified according to two groups: manual and electric scooters.

interventionsA predefined survey was completed in all cases where 'scooter' was present. This contained variables such as type of scooter, type of participant, mechanism of injury, acuity, intoxication, referral to treatment facility. OUTCOME MEASURES: Among incidents involving scooters, summary statistics on continuous and categorical variables of interest were reported.

results468 scooter-related injuries were recorded. We found that manual scooter riders were more likely to be children under the age of 15; fall alone-involving no other party; sustain contusions, sprains and lacerations; and bruise either their fingers or toes. Riders of electric scooters were likely to be 18-25 years, sustain facial bruising and lacerations requiring sutures, and be under the influence of alcohol or drugs. Non-riders of electric scooters were mostly elderly people who tripped over scooters, consequently sustaining moderate to severe injuries.

conclusionThere were two different types of population sustaining injuries from manual and electric scooters, respectively. The proportion of non-riders injured by electric scooters were surprisingly large (17%), and while electric scooters are here to stay, several apparently preventable injuries occur as a result of reckless driving and discarded electric scooters. Current rules for usage might not prevent unnecessary accidents and secure traffic safety and the lives of older individuals.

Indexed as

MotorcyclesAccidental InjuriesAdolescentAdultAgedAged, 80 and overCohort StudiesDenmarkFemaleHumansMaleMiddle AgedRetrospective StudiesYoung AdultDenmarkEMSe-scooterinjurymicromobilityscootertraffic

Identifiers

PMID31871261
PMCPMC6936991

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Registered trials

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.