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Does Age Correlate with Fatalities? Evidence from 2011-2022 Taiwan Crash Data

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A. Widodo, C. Chen, and C. Pai 1
1 Graduate Institute of Injury Prevention & Control, College of Public Health, Taipei Medical University,

Chinese Taipei

Background: In Taiwan, motorcyclists are considered as vulnerable road users, leading to a higher
rate of crashes and a greater number of fatalities. The likelihood of fatalities among motorcyclists was
found to be determined by age.

Objective: This study investigated the potential association between increasing age in elderly
motorcyclists and fatalities in Taiwan.

Methods: Police-reported crash data in Taiwan between 2011 and 2022 was used in this study.
Chi-square tests were employed to examine the risk factors for motorcyclist injury severity, which were
then incorporated into stepwise logistic regression models with multiple variables. Moreover, joint
effect analysis was used to explore injury severity among motorcyclists differs across various
situations.

Results: Our data contained 338,546 motorcyclist crashes, of which 2,703 and 335,843 sustained
fatalities and non-fatal injuries, respectively. By increasing the age, elderly motorcyclists will be more
likely to 4.5% sustain fatalities. The detrimental effect of elderly motorcyclists on fatalities appeared to Oral Presentation Abstracts
be more pronounced when the elderly motorcyclists were male (AOR = 2.11; CI = 1.871-2.388), in rural
areas (AOR = 2.54; CI = 1.65-3.90), and drunk riding (AOR = 4.79; CI = 2.00-11.43).

Conclusion: The number of fatalities among elderly motorcyclists increased with age and the
detrimental effects were more pronounced when the elderly motorcyclists were male, in rural areas,
and intoxicated. Foster a supportive community environment for elderly motorcyclists, encouraging
peer support networks, mentorship programs, and group rides that promote safe riding behaviors and
camaraderie among riders.

Keywords: age, elderly, motorcyclists, fatalities

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Correspondence: Chih-Wei Pai, Graduate Institute of Injury Prevention & Control, College of Public
Health, Taipei Medical University, Chinese Taipei
E-mail: cpai@tmu.edu.tw

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