Socio-demographic determinants of COVID-19 vaccine uptake in Ontario: Exploring differences across the Health Region model
Open accessAbstract
The COVID-19 pandemic continues to be a worldwide public health concern. Although vaccines against this disease were rapidly developed, vaccination uptake has not been equal across all the segments of the population, particularly in the case of underrepresented groups. However, there are also differences in vaccination across geographical areas, which might be important to consider in the development of future public health vaccination policies. In this study, we examined the relationship between vaccination status (having received the first dose of a COVID-19 vaccine), socio-economic strata, and the Health Regions for individuals in Ontario, Canada. Our results show that between October of 2021 and January of 2022, individuals from underrepresented communities were three times less likely to be vaccinated than White/Caucasian individuals across the province of Ontario, and that in some cases, within these groups, individuals in low-income brackets had significantly higher odds of vaccination when compared to their peers in high income brackets. Finally, we identified significantly lower odds of vaccination in the Central, East and West Health Regions of Ontario within certain underrepresented groups. This study shows that there is an ongoing need to better understand and address differences in vaccination uptake across diverse segments of the population of Ontario that the pandemic has largely impacted.
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Equitable vaccination coverage saves more lives.
“save more lives(45,50)”
From Social inequalities in COVID-19 death by area-level income in 11.2 million people in Ontario, Canada: patterns over time and the mediating role of vaccination. (2026) · cites this paper as [50]
The Introduction (p. 1) reports that COVID-19 vaccines have prevented millions of deaths, and the Conclusion (p. 9) calls for improving vaccine access for marginalized communities. The paper does not establish the comparative claim that equitable coverage saves more lives than less equitable coverage. (LLM, conf=0.82)
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Wang, L., Swayze, S., Bodner, K., Calzavara, A., Harrigan, S. P., Siddiqi, A., Baral, S. D., Austin, P. C., Smylie, J., Koh, M., et al. (2026) · American Journal of Epidemiology · doi:10.1093/aje/kwaf051 · Cited by 5 · see citing works
- Authors
- Mundo Ortiz, A., & Nasri, B.
- Affiliations
- Centre de recherche en santé publique (CA)
- Corresponding author
- Nasri, Bouchra
- ORCID
- Nasri, Bouchra
- Venue
- Vaccine
- Publisher
- Elsevier BV
- Published
- 2024-03
- Volume
- 42
- Issue
- 8
- Pages
- 2106-2114
- ISSN
- 0264-410X (ISSN-L)
- OpenAlex
- W4392170213
- Cited by
- 4
- References
- 4
- Citations by year
- 2026: 1 · 2025: 3
- FWCI
- 1.82
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Vaccine (publishedVersion, cc-by-nc-nd)
- medRxiv (acceptedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- CRSNG
- Topics
- Social Sciences › Health › Vaccine Coverage and Hesitancy
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
- Physical Sciences › Mathematics › Modeling and Simulation › COVID-19 epidemiological studies
- Keywords
- COVID-19 vaccine uptake, sociodemographic factors, health disparities, underrepresented groups, socioeconomic status, income inequality, health regions, Ontario, vaccination policy, racial and ethnic minorities
- MeSH terms
- COVID-19, COVID-19 Vaccines, Demography, Humans, Ontario, Vaccination, Pandemics
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