Journal of Trauma and Injury

The Korean Society of Traumatology (대한외상학회)
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Age group analysis of patients with dog bite injuries who visited a single regional emergency medical center and factors affecting wound infections

  • Kang, Dong Ho (Department of Emergency Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine) ;
  • Choi, Jea Yeon (Department of Emergency Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine) ;
  • Choi, Woo Sung (Department of Emergency Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine) ;
  • Jang, Jae Ho (Department of Emergency Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine) ;
  • Cho, Jin-Seong (Department of Emergency Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine) ;
  • Hyun, Sung Youl (Department of Traumatology, Gachon University Gil Medical Center, Gachon University College of Medicine)
  • Received : 2021.06.25
  • Accepted : 2021.08.10
  • Published : 2022.06.30
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Abstract

Purpose: The aim of this study was to analyze by age group the characteristics of patients with dog bite injuries, as well as determine which factors were associated with wound infections in those patients. Methods: We reviewed patients with dog bite injuries who presented to Gachon University Gil Medical Center in Incheon, Korea from January 1, 2014 to December 31, 2018. They were classified by age group: children (0-18 years), adults (19-59 years), or elderly (≥60 years). Event profiles, wound characteristics, and infections were compared across these age groups. Multivariable logistic regression was used to identify factors associated with wound infections. Results: Of the total 972 dog bite injuries, 272 (28.0%) were in children, 606 (62.3%) were in adults, and 94 (9.7%) were in the elderly. The median age was 30 years (interquartile range, 16-48 years) and the majority of patients (60.5%) were female. The most common place of injury was at home (73.8%) and indoors (77.0%). In children, the head and neck were the most frequent sites of injury (43%), while the most frequent site in adults and the elderly (50.8% and 59.6%, respectively) was the upper extremity. The odds ratio (OR) for wound infection was 3.997 (95% confidence interval [CI], 1.279-12.491; P=0.017) for head and neck injuries and 3.881 (95% CI, 1.488-10.122; P=0.006) for lower extremity injuries. The OR for wound infection was 4.769 (95% CI, 2.167-10.494; P<0.001) for significant injuries. Elderly patients had a higher risk for wound infection than other age groups (OR, 2.586; 95% CI, 1.221-5.475; P=0.013). Conclusions: When analyzing patients with dog bite injuries, differences across age groups were found, with the elderly at the highest risk for significant injury and wound infection. It is recommended that age-specific approaches and strategies be used to prevent dog bite wound infections.

Keywords

Acknowledgement

This research was supported by a research fund from the Korea Centers for Disease Control and Prevention (Emergency Department-based Injury In-depth Surveillance).

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