Key result
Residing in northern territories was strongly associated with incomplete polio vaccination by 2 years of age compared to central provinces (aOR 6.2; 95% CI 2.5-15.2).
Why the study?
Canada has not reached the national vaccination coverage goal of 95 % for polio vaccination in 2-year-old children.
Cross-Sectional
Yes
Odds Ratio: 6.2 (95% CI 2.5–15.2)
Geographic location, lower household income, and lower vaccine confidence are significant determinants of incomplete polio vaccination in Canadian 2-year-olds.
May guide targeted outreach to northern/remote low-income Canadian households; leaves open whether addressing these factors boosts polio coverage.
Background Canada has not reached the national vaccination coverage goal of 95 % for polio vaccination in 2-year-old children. The objective of this study was to examine determinants of incomplete polio vaccination (receipt of less than 3 doses of a polio vaccine) by 2 years of age using data from the 2021 cycle of the Childhood National Immunization Coverage Survey (cNICS). Methods Simple and multiple logistic regression models were used to determine associations between sociodemographic factors of parents and children and knowledge, attitudes and beliefs of parents, relative to incomplete vaccination against polio among 2-year-old children. Results Incomplete polio vaccination by 2 years of age was associated with parents/guardians residing in Prairie provinces (AB, MB & SK) (aOR 2.2; 95 % CI: 1.3–3.6) or northern territories (NT, NU & YT) (aOR: 6.2; 95 % CI: 2.5–15.2) compared to central provinces (ON & QC); having a total 2020 household income of less than $60,000 CAD (aOR: 2.8; 95 % CI: 1.2–6.8) compared to $150,000 CAD and above; and living in a remote/very remote area (aOR: 4.7; 95 % CI: 1.8–12.4) compared to a more accessible area. Comparatively, parents/guardians were less likely to have children with incomplete polio vaccination if their child was indigenous (aOR: 0.1; 95 % CI: 0.1–0.3) compared to non-Indigenous and if they had a higher vaccine confidence score (OR: 0.3; 95 % CI: 0.2–0.4). Conclusions Future research should delve into barriers faced by parents/guardians to improve polio vaccine uptake through specific vaccine messaging and targeted programs.
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Zareef et al. (2025) conducted a cross-sectional in Incomplete polio vaccination. Residing in northern territories (NT, NU & YT) vs. Central provinces (ON & QC) was evaluated on Incomplete polio vaccination (receipt of less than 3 doses of a polio vaccine) by 2 years of age (aOR 6.2, 95% CI 2.5-15.2). Residing in northern territories was strongly associated with incomplete polio vaccination by 2 years of age compared to central provinces (aOR 6.2; 95% CI 2.5-15.2).
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