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Epidemiology and Health 2022;e2022076.
DOI: https://doi.org/10.4178/epih.e2022076    [Accepted] Published online Sep 16, 2022.
Type 2 diabetes mellitus increases the severity of non-fatality injury but not the risk of fatal injury among driver victims of motor vehicle crashes
Ya-Hui Chang3  , Wen-Hsuan Hou2  , Chung-Yi Li1 
1National Cheng Kung University, Tainan, Taiwan
2National Cheng Kung University, Tainan, Taiwan
3National Cheng Kung University, Tainan, Taiwan
Correspondence  Chung-Yi Li ,Email: cyli99@mail.ncku.edu.tw
Received: Jul 7, 2022  Accepted after revision: Sep 16, 2022
Limited information is available on whether diabetes may increase the severity of injury from motor vehicle crashes (MVCs). This study aimed to investigate the levels of injury severity associated with type 2 diabetes among driver victims of MVCs.
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 injury 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 MVC. Information on fatal injury within 3 days after MVC was obtained from the Taiwan Death Registry. Logistic regression models were used to estimate the odds ratios (ORs) and the corresponding 95% confidence interval (CI) of injury severity in association with type 2 diabetes.
After adjusting for potential confounders, driver victims with type 2 diabetes experienced significantly increased risks of mild and severe non-fatal injuries at a covariate-adjusted OR of 1.08 (95% CI: 1.05–1.11) and 1.28 (95 % CI: 1.20–1.37), respectively. By contrast, the adjusted OR for fatal injury was not significantly increased at 1.02 (95% CI: 0.89–1.18). Similar results were found when car and scooter driver victims were analyzed separately.
Type 2 diabetes was found to moderately increase the severity of non-fatal injury from MVCs among car and scooter driver victims.
Keywords: Motor vehicles; Diabetes Mellitus; Traffic accidents; Cohort Studies; Injury severity ; Mortality
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