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    2 Comments for this article
    Not very compelling.
    William Meyer |
    According to their data, 5.7% of scooter riders wear helmets, and 4.4% of injured people were wearing a helmet. That's not a very significant difference.
    Important study points to need for helmet use
    Geoffrey Rutledge, MD, PhD | HealthTap
    This study shows that head injuries are very common among electric scooter-induced injuries (more than 1/3 of all such injuries) and that the vast majority of riders are not wearing helmets. We know that helmets reduce the severity of head injuries; they should be required for all electric scooter riders.
    Original Investigation
    Emergency Medicine
    January 25, 2019

    Injuries Associated With Standing Electric Scooter Use

    Author Affiliations
    • 1Veterans Administration, Greater Los Angeles Healthcare System, Los Angeles, California
    • 2National Clinician Scholars Program, University of California, Los Angeles, Los Angeles, California
    • 3Department of Emergency Medicine, University of California, Los Angeles
    • 4Department of Surgery, Stanford University, Stanford, California
    • 5Department of Surgery, University of California, Los Angeles
    • 6Office of Health Informatics and Analytics, UCLA Health, University of California, Los Angeles
    • 7Division of General Internal Medicine and Health Services Research, University of California, Los Angeles
    JAMA Netw Open. 2019;2(1):e187381. doi:10.1001/jamanetworkopen.2018.7381
    Key Points español 中文 (chinese)

    Question  What are the types of injuries associated with standing electric scooter use and the characteristics and behaviors of injured patients?

    Findings  In this study of a case series, 249 patients presented to the emergency department with injuries associated with electric scooter use during a 1-year period, with 10.8% of patients younger than 18 years and only 4.4% of riders documented to be wearing a helmet. The most common injuries were fractures (31.7%), head injuries (40.2%), and soft-tissue injuries (27.7%).

    Meaning  In this study, injuries associated with electric scooter use were common, ranged in severity, and suggest low rates of adherence to existing regulations around rider age and low rates of helmet use.


    Importance  Since September 2017, standing electric scooters have proliferated rapidly as an inexpensive, easy mode of transportation. Although there are regulations for safe riding established by both electric scooter companies and local governments, public common use practices and the incidence and types of injuries associated with these standing electric scooters are unknown.

    Objective  To characterize injuries associated with standing electric scooter use, the clinical outcomes of injured patients, and common use practices in the first US metropolitan area to experience adoption of this technology.

    Design, Setting, and Participants  This study of a case series used retrospective cohort medical record review of all patients presenting with injuries associated with standing electric scooter use between September 1, 2017, and August 31, 2018, at 2 urban emergency departments associated with an academic medical center in Southern California. All electric scooter riders at selected public intersections in the community surrounding the 2 hospitals were also observed during a 7-hour observation period in September 2018.

    Main Outcomes and Measures  Incidence and characteristics of injuries and observation of riders’ common use practices.

    Results  Two hundred forty-nine patients (145 [58.2%] male; mean [SD] age, 33.7 [15.3] years) presented to the emergency department with injuries associated with standing electric scooter use during the study period. Two hundred twenty-eight (91.6%) were injured as riders and 21 (8.4%) as nonriders. Twenty-seven patients were younger than 18 years (10.8%). Ten riders (4.4%) were documented as having worn a helmet, and 12 patients (4.8%) had either a blood alcohol level greater than 0.05% or were perceived to be intoxicated by a physician. Frequent injuries included fractures (79 [31.7%]), head injury (100 [40.2%]), and contusions, sprains, and lacerations without fracture or head injury (69 [27.7%]). The majority of patients (234 [94.0%]) were discharged home from the emergency department; of the 15 admitted patients, 2 had severe injuries and were admitted to the intensive care unit. Among 193 observed electric scooter riders in the local community in September 2018, 182 (94.3%) were not wearing a helmet.

    Conclusions and Relevance  Injuries associated with standing electric scooter use are a new phenomenon and vary in severity. In this study, helmet use was low and a significant subset of injuries occurred in patients younger than 18 years, the minimum age permitted by private scooter company regulations. These findings may inform public policy regarding standing electric scooter use.