J Korean Soc Emerg Med.  2020 Apr;31(2):161-168.

Severity of injury and related factors of personal mobility vehicle accidentscompared with bicycle accidents

Affiliations
  • 1Departments of Emergency Medicine, Gachon University Gil Medical Center, Incheon, Korea
  • 2Departments of Traumatology, Gachon University Gil Medical Center, Incheon, Korea

Abstract


Objective
Personal mobility vehicles (PMV) have been used widely as a means of replacing bicycles in recent years because of their convenience and high economic efficiency. On the other hand, accidents related to PMV are also increasing, but there have been few studies in this area. This study examined the factors that increase the severity of damage and determine the characteristics of the PMV compared to the accidents on a bicycle.
Methods
Retrospective observational studies were performed. The variables related to the accident were collected and analyzed for patients who visited the emergency room due to a PMV and bicycle accident. Multivariate logistic regression analysis was used to determine the factors affecting the severity of the patients. The odds ratios were calculated and compared between injuries related to PMV and bicycles.
Results
A total of 1,124 patients (bicycles 1,017, PMV 107) were enrolled in this study. In multivariate regression analysis, the severity of PMV was higher (odds ratio [OR], 1.73; 95% confidence interval [CI], 1.06-2.83) than that of a bicycle. The factors affecting the severity of the patients were age (OR, 1.02, 95% CI, 1.01-1.03), alcohol use (OR, 1,70; 95% CI, 1.04-2.70), ambulance transport (OR, 2.46; 95% CI, 1.78-3.40), and wearing a helmet (OR, 2.06; 95% CI, 1.36-3.13).
Conclusion
PMV showed higher severity of damage than a bicycle. The PMV, which is a new transportation means, is insufficient for the prevention of safety compared to bicycles where driving regulations and wearing protective equipment are common. Additional studies on the precise mechanisms of injury and damage are expected to prevent accidents and reduce their severity.

Keyword

Injury severity score; Accidents; Bicycling; Off-road motor vehicles
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