ArticleBMC public health2025
Coverage of the influenza and pneumococcal vaccinations among immigrant and non-immigrant older adults in Canada: a cross-sectional analysis of data from the Canadian Longitudinal Study on Aging (CLSA).
Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundInfluenza and pneumococcal vaccination coverage in older adults fall below the target of 80%. Being an immigrant may be associated with lower coverage of both vaccinations, but limited efforts have been made in the Canadian context to explore such disparities. Therefore, we examined the association between immigrant status and coverage of influenza and pneumococcal vaccinations among older adults as well as the relative importance of immigrant status in predicting coverage of both vaccinations.
methodsWe conducted a cross-sectional secondary analysis of the Canadian Longitudinal Study on Aging data. We descriptively analyzed coverage of both vaccinations by immigrant status and used Poisson regression models with robust standard errors to estimate the associations of immigrant status and other key equity stratifiers with vaccination. Importance of various determinants, including immigrant status, in predicting both vaccinations were assessed using random forest algorithms.
resultsImmigrant participants reported lower coverage of influenza vaccination in the past 12 months (63.8% [95% CI: 60.9-66.7%] vs. 66.9% [95% CI: 65.5-68.3%]) and pneumococcal vaccination ever (48.7% [95% CI: 45.6-51.8%] vs. 55.8% [95% CI: 54.3-57.3%]). Prevalence of influenza and pneumococcal vaccinations were both lower among immigrant participants compared to non-immigrant participants. Immigrant status was among the 10 most important predictors of pneumococcal vaccination, but among the less important predictors of influenza vaccination.
conclusionsOverall, we found disparities in influenza and pneumococcal vaccination by immigrant status among older adults in Canada. Further studies on vaccination coverage and decision-making among marginalized communities, including immigrants, are warranted to equitably improve vaccine uptake.
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