Journal of Trauma and Injury

The Korean Society of Traumatology (대한외상학회)
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Factors and Their Correlation with Injury Severity of Elderly Pedestrian Traffic Accidents

  • Hyun, Tae gyu (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Yeom, Seok-Ran (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Park, Sung-Wook (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Lee, Deasup (Department of Emergency Medicine, Pusan National University Yangsan Hospital) ;
  • Kim, Hyung bin (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Wang, Il Jae (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Bae, Byung Gwan (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Song, Min keun (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital) ;
  • Cho, Youngmo (Department of Emergency Medicine and Biomedical Research Institute, Pusan National University Hospital)
  • Received : 2019.07.10
  • Accepted : 2019.09.10
  • Published : 2019.09.30
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Abstract

Purpose: No previous study has assessed elderly pedestrian traffic accidents based on a nationwide database. This study aimed to help primary physicians who examine patients in emergency departments to determine and make prompt and accurate treatment decisions. Methods: This study used data from the Emergency Department-based Injury Indepth Surveillance from 2013 to 2017, managed by the Korea Centers for Disease Control and Prevention. Pedestrians aged ${\geq}65years$ were included, and using multivariate logistic regression multiple factors were analyzed to determine their relationship with injury severity. Results: Of 227,695 subjects, 6,498 were included, of whom 2,065 (31.8%) were severely injured. There were more female than male patients in all severity groups. Most accidents occurred in the afternoon and on general roads. In the multivariate analysis, the odds ratio (OR) of injury severity for male pedestrians was 1.165 (95% confidence interval: 1.034-1.313, p=0.012). Older age of patients and the use of ambulances were associated with greater injury severity. The accident time affected the degree of injury severity; i.e., compared to dawn, injury severity increased in the morning (OR: 1.246, p=0.047) and decreased at night (OR: 0.678, p<0.001). A significant difference was noted in the correlation between the type of vehicle causing the accident and the accident severity; i.e., motorcycle accidents had lower severity than bicycle accidents (OR: 0.582, p=0.047). Conclusions: Injury severity was correlated with sex, age, transportation to the ED, TA onset time, and type of vehicle. The study results suggest that injury severity may be positively reflected in initial assessments and overall integrated treatments by physicians and in the related policies.

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