ArticleVaccine2022
Influenza vaccination uptake among Canadian adults before and during the COVID-19 pandemic: An analysis of the Canadian Longitudinal study on Aging (CLSA).
Article in Vaccine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
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Who cites it
27 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.
- Impact of COVID-19 on vaccine confidence and uptake: A systematic literature review.Human vaccines & immunotherapeutics · 2024Pooled it
- Review
- Article
- Monitoring influenza vaccination coverage among older adults: a rural cohort study, Rio Grande, 2017-2022.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2026Article
- Changes in seasonal influenza vaccination uptake among older adults during and after the COVID-19 pandemic: Repeated random telephone surveys.Human vaccines & immunotherapeutics · 2025Article
- COVID-19 vaccine acceptance and preference for future delivery among language minority, newcomer, and racialized peoples in Canada: a national cross-sectional and longitudinal study.Annals of medicine · 2025Article
- Characterizing influenza vaccine coverage and factors associated with missed vaccination among adults from 2018 to 2021: an analysis of the Canadian Longitudinal Study on Aging (CLSA) follow-up 2.BMC public health · 2025Article
- Influenza Vaccination Coverage and Determinants of New Vaccinations During the COVID-19 Pandemic in Spain (ENE-COVID): Nationwide Population-Based Study.JMIR public health and surveillance · 2025Article
- The association between healthcare access and shingles vaccination among older adults in Virginia, United States.PloS one · 2025Article
- Characteristics and factors of repeated influenza vaccination among elderly individuals in Shanghai, China from 2020 to 2022.Human vaccines & immunotherapeutics · 2024Article
- Impact of propensity to COVID-19 vaccination/vaccine on influenza vaccination from willingness to behavior among older adults in rural China.Human vaccines & immunotherapeutics · 2024Article
- The impact of the COVID-19 pandemic and the free vaccination policy on seasonal influenza vaccination uptake among older adults in Ningbo, Eastern China.Human vaccines & immunotherapeutics · 2024Article
- Vaccination Motivators and Deterrents Among Undervaccinated Older Adults in North Dakota.Journal of community health · 2024Article
- Influenza vaccination patterns among at-risk patients during the Covid-19 pandemic-a retrospective cross-sectional study based on claims data.Infection · 2024Article
- Co-Administration of Influenza and COVID-19 Vaccines: A Cross-Sectional Survey of Canadian Adults' Knowledge, Attitudes, and Beliefs.Pharmacy (Basel, Switzerland) · 2024Article
- Analysis of Attitudes and Practices towards the Influenza Vaccine in High-Risk Adults in Poland.Vaccines · 2024Article
- Risk perception and trust in the relationship between knowledge and HPV vaccine hesitancy among female university students in China: a cross-sectional study.BMC public health · 2024Article
- The association between influenza vaccination and the perception of COVID-19 as well as COVID-19 vaccination behavior among community residents in Anhui province, China.Human vaccines & immunotherapeutics · 2023Article
- Impact of the COVID-19 pandemic on non-COVID-19 community-acquired pneumonia: a retrospective cohort study.BMJ open respiratory research · 2023Article
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Authors and funding
8 authors at 5 institutions in 2 countries.
Funding
Abstract
introductionUnderstanding how influenza vaccine uptake changed during the 2020/2021 influenza season compared to previous pre-pandemic seasons is a key priority, as is identifying the relationship between prior influenza vaccination and COVID-19 vaccine willingness.
methodsWe analyzed data from a large, nationally representative cohort of Canadian residents aged 50 and older to assess influenza vaccination status three times between 2015 and 2020. We investigated: 1) changes in self-reported influenza vaccine uptake, 2) predictors of influenza vaccine uptake in 2020/2021, and 3) the association between influenza vaccination history and self-reported COVID-19 vaccine willingness using logistic regression models.
resultsAmong 23,385 participants analyzed for aims 1-2, influenza vaccination increased over time: 14,114 (60.4%) in 2015-2018, 15,692 (67.1%) in 2019/2020, and 19,186 (82.0%; combining those already vaccinated and those planning to get a vaccine) in 2020/2021. After controlling for socio-demographics, history of influenza vaccination was most strongly associated with influenza vaccination in 2020/2021 (adjusted odds ratio [aOR] 147.9 [95% CI: 120.9-180.9]); this association remained after accounting for multiple health and pandemic-related factors (aOR 140.3 [95% CI: 114.5-171.8]). To a lesser degree, those more concerned about COVID-19 were also more likely to report influenza vaccination in fall 2020, whereas those reporting a very negative impact of the pandemic were less likely to get vaccinated. Among 23,819 participants with information on COVID-19 vaccine willingness during the last quarter of 2020 (aim 3), prior influenza vaccination was most strongly associated with willingness to get a COVID-19 vaccine (aOR 15.1 [95% CI: 13.5-16.8] for those who had received influenza vaccine at all previous timepoints versus none).
conclusionsOur analysis highlights the importance of previous vaccination in driving vaccination uptake and willingness. Efforts to increase vaccination coverage for influenza and COVID-19 should target individuals who do not routinely engage with immunization services regardless of demographic factors.
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