Epidemiol Health.  2022;44(1):e2022076. 10.4178/epih.e2022076.

Type 2 diabetes mellitus increases the severity of non-fatal injuries, but not the risk of fatal injuries, among driver victims of motor vehicle crashes in Taiwan

Affiliations
  • 1Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
  • 2College of Medicine, National Cheng Kung University, Tainan, Taiwan
  • 3Department of Geriatrics and Gerontology, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
  • 4School of Gerontology and Long-Term Care, College of Nursing, Taipei Medical University, Taipei, Taiwan
  • 5Department of Public Health, College of Medicine, National Cheng Kung University Tainan, Taiwan
  • 6Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan
  • 7Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan

Abstract


OBJECTIVES
Limited information is available on whether diabetes increases the severity of injuries from motor vehicle crashes (MVCs). This study aimed to investigate the association of type 2 diabetes with injury severity among driver victims of MVCs.
METHODS
This cohort study involved 75,737 adult driver victims with type 2 diabetes from Taiwan’s Police-Reported Traffic Accident Registry in 2015-2017, along with 150,911 sex-, age-, and calendar year-matched controls. The severity level of non- fatal injuries was derived from the International Classification of Diseases Programs for Injury Categorization based on the diagnostic codes of National Health Insurance claims within 3 days after an MVC. Information on fatal injuries within 3 days after an MVC was obtained from the Taiwan Death Registry. Logistic regression models were used to estimate the odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) of injury severity in association with type 2 diabetes.
RESULTS
After adjusting for potential confounders, driver victims with type 2 diabetes experienced significantly higher risks of mild and severe non-fatal injuries than their counterparts without diabetes, with covariate-adjusted ORs of 1.08 (95% CI, 1.05 to 1.11) and 1.28 (95% CI, 1.20 to 1.37), respectively. By contrast, the adjusted OR for fatal injuries was not significantly elevated, at 1.02 (95% CI, 0.89 to 1.18). Similar results were found when car and scooter driver victims were analyzed separately.
CONCLUSIONS
Type 2 diabetes was found to moderately increase the severity of non-fatal injuries from MVCs among car and scooter driver victims.

Keyword

Diabetes mellitus; Motor vehicles; Traffic accidents; Cohort studies; Injury severity; Mortality
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