Measuring inequities in transportation injuries in a Canadian commuter cohort: impacts of individual versus neighbourhood income.

IF 2.2 3区 医学 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Ryann E Yeo, Michael Branion-Calles, Linda Rothman, Meghan Winters, M Anne Harris
{"title":"Measuring inequities in transportation injuries in a Canadian commuter cohort: impacts of individual versus neighbourhood income.","authors":"Ryann E Yeo, Michael Branion-Calles, Linda Rothman, Meghan Winters, M Anne Harris","doi":"10.1186/s40621-025-00615-8","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Low income has been associated with a higher risk of transportation-related injury however, previous studies have largely relied on area-level income, due to the limited availability of individual-level data.</p><p><strong>Methods: </strong>To examine the independent and combined roles of individual- and area-level income, this prospective cohort study followed ~ 6,557,000 Canadians from the Canadian Census Health and Environment Cohorts (2006, 2011, 2016), for pedestrian, bicycling, or motor vehicle hospitalizations. Income was measured (1) individually by the low-income cut-off and (2) at the area level using neighbourhood income quintiles. Poisson regression estimated the incidence rate ratios (IRR) and 95% confidence intervals (CI) for transportation-related hospitalizations.</p><p><strong>Results: </strong>After adjusting for covariates, low-income individuals had higher risks of hospitalizations for pedestrian (IRR = 1.93, 95%CI (1.62, 2.29)), bicycling (IRR = 1.16, 95%CI (1.01, 1.34)) and motor vehicle injuries (IRR = 1.18, 95%CI (1.06, 1.31)). When both individual and neighbourhood income were assessed together we estimated, that those who lived in the lowest income neighbourhoods (compared to the highest) had a higher risk of pedestrian (IRR = 1.80, 95%CI (1.51, 2.14)) and motor vehicle injury (IRR = 1.33, 95%CI (1.22, 1.42)) but lower risk of bicycling injury (IRR = 0.73, 95%CI (0.65, 0.81)).</p><p><strong>Conclusions: </strong>The interaction between individual and neighbourhood income revealed an increased injury risk for low-income individuals in all neighbourhoods, with large inequities in pedestrian and motor vehicle injury risk persisting even in the highest-income neighbourhoods. These findings demonstrate individual income independently contributes to transportation injury risk, underscoring the importance of considering both individual- and area-level income.</p>","PeriodicalId":37379,"journal":{"name":"Injury Epidemiology","volume":"12 1","pages":"64"},"PeriodicalIF":2.2000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12487150/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Injury Epidemiology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1186/s40621-025-00615-8","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH","Score":null,"Total":0}
引用次数: 0

Abstract

Background: Low income has been associated with a higher risk of transportation-related injury however, previous studies have largely relied on area-level income, due to the limited availability of individual-level data.

Methods: To examine the independent and combined roles of individual- and area-level income, this prospective cohort study followed ~ 6,557,000 Canadians from the Canadian Census Health and Environment Cohorts (2006, 2011, 2016), for pedestrian, bicycling, or motor vehicle hospitalizations. Income was measured (1) individually by the low-income cut-off and (2) at the area level using neighbourhood income quintiles. Poisson regression estimated the incidence rate ratios (IRR) and 95% confidence intervals (CI) for transportation-related hospitalizations.

Results: After adjusting for covariates, low-income individuals had higher risks of hospitalizations for pedestrian (IRR = 1.93, 95%CI (1.62, 2.29)), bicycling (IRR = 1.16, 95%CI (1.01, 1.34)) and motor vehicle injuries (IRR = 1.18, 95%CI (1.06, 1.31)). When both individual and neighbourhood income were assessed together we estimated, that those who lived in the lowest income neighbourhoods (compared to the highest) had a higher risk of pedestrian (IRR = 1.80, 95%CI (1.51, 2.14)) and motor vehicle injury (IRR = 1.33, 95%CI (1.22, 1.42)) but lower risk of bicycling injury (IRR = 0.73, 95%CI (0.65, 0.81)).

Conclusions: The interaction between individual and neighbourhood income revealed an increased injury risk for low-income individuals in all neighbourhoods, with large inequities in pedestrian and motor vehicle injury risk persisting even in the highest-income neighbourhoods. These findings demonstrate individual income independently contributes to transportation injury risk, underscoring the importance of considering both individual- and area-level income.

Abstract Image

衡量加拿大通勤人群中交通伤害的不平等:个人与社区收入的影响。
背景:低收入与较高的交通相关伤害风险相关,然而,由于个人水平数据的可用性有限,先前的研究主要依赖于区域水平的收入。方法:为了检查个人和地区收入水平的独立和综合作用,这项前瞻性队列研究跟踪了来自加拿大人口普查健康和环境队列(2006年、2011年、2016年)的约6,557,000名加拿大人,包括步行、骑自行车或机动车住院治疗。收入是(1)用低收入分界点单独衡量的,(2)在地区一级用邻里收入五分位数衡量的。泊松回归估计了交通相关住院的发病率比(IRR)和95%置信区间(CI)。结果:调整协变量后,低收入人群因行人(IRR = 1.93, 95%CI(1.62, 2.29))、骑自行车(IRR = 1.16, 95%CI(1.01, 1.34))和机动车伤害(IRR = 1.18, 95%CI(1.06, 1.31))住院的风险较高。当个人和社区收入一起评估时,我们估计,那些生活在收入最低的社区(与收入最高的社区相比)的行人(IRR = 1.80, 95%CI(1.51, 2.14))和机动车伤害(IRR = 1.33, 95%CI(1.22, 1.42))的风险较高,但骑自行车伤害的风险较低(IRR = 0.73, 95%CI(0.65, 0.81))。结论:个人和社区收入之间的相互作用揭示了所有社区中低收入个体的伤害风险增加,即使在收入最高的社区中,行人和机动车伤害风险也存在很大的不平等。这些发现表明,个人收入对交通伤害风险有独立的影响,强调了考虑个人和地区收入水平的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Injury Epidemiology
Injury Epidemiology Medicine-Medicine (all)
CiteScore
3.20
自引率
4.50%
发文量
34
审稿时长
13 weeks
期刊介绍: Injury Epidemiology is dedicated to advancing the scientific foundation for injury prevention and control through timely publication and dissemination of peer-reviewed research. Injury Epidemiology aims to be the premier venue for communicating epidemiologic studies of unintentional and intentional injuries, including, but not limited to, morbidity and mortality from motor vehicle crashes, drug overdose/poisoning, falls, drowning, fires/burns, iatrogenic injury, suicide, homicide, assaults, and abuse. We welcome investigations designed to understand the magnitude, distribution, determinants, causes, prevention, diagnosis, treatment, prognosis, and outcomes of injuries in specific population groups, geographic regions, and environmental settings (e.g., home, workplace, transport, recreation, sports, and urban/rural). Injury Epidemiology has a special focus on studies generating objective and practical knowledge that can be translated into interventions to reduce injury morbidity and mortality on a population level. Priority consideration will be given to manuscripts that feature contemporary theories and concepts, innovative methods, and novel techniques as applied to injury surveillance, risk assessment, development and implementation of effective interventions, and program and policy evaluation.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信