Unadjusted and adjusted associations between sociodemographic variables and vaccination status: the weighted odds of being unvaccinated versus having at least 1 dose
| Variable | Sample size* n = 63 194 | % not vaccinated (95% CI) | Simple logistic regression; OR (95% CI) | Multiple logistic regression;† adjusted OR (95% CI) |
|---|---|---|---|---|
| Collection period | ||||
| June 1–Sept. 5, 2021 | 9223 | 11 (10–12) | 2.3 (1.8–2.8) | 2.4 (1.9–3.0) |
| Sept. 1–Nov. 14, 2021 | 10 854 | 6 (5–6) | 1.0 (0.8–1.3) | 1.1 (0.9–1.4) |
| Nov. 15, 2021–Feb. 7, 2022 | 11 025 | 4 (3–5) | 0.7 (0.6–0.9) | 0.8 (0.6–1.0) |
| Feb. 9–May 7, 2022 | 15 885 | 5 (5–6) | 1.0 (0.8–1.2) | 1.0 (0.8–1.2) |
| Apr. 2–June 30, 2022 | 16 207 | 5 (5–6) | Reference | Reference |
| Region of residence | ||||
| British Columbia | 7976 | 6 (5–7) | 1.3 (1.1–1.7) | 1.6 (1.2–2.0) |
| Prairies | 15 193 | 8 (7–9) | 1.8 (1.5–2.2) | 1.8 (1.4–2.2) |
| Ontario | 19 148 | 6 (5–7) | 1.3 (1.1–1.6) | 1.5 (1.2–1.8) |
| Quebec | 10 870 | 5 (5–6) | 1.2 (0.9–1.5) | 1.1 (0.9–1.4) |
| Atlantic region | 10 007 | 5 (4–5) | Reference | Reference |
| Age group, yr | ||||
| 18–29 | 5353 | 8 (7–9) | 2.5 (1.9–3.2) | 3.8 (2.7–5.4) |
| 30–39 | 8415 | 8 (7–9) | 2.5 (2.0–3.1) | 3.6 (2.8–4.6) |
| 40–49 | 8242 | 7 (6–8) | 2.1 (1.6–2.6) | 2.8 (2.2–3.7) |
| 50–59 | 9494 | 6 (5–7) | 1.8 (1.4–2.2) | 2.1 (1.6–2.8) |
| 60–69 | 14 804 | 4 (4–5) | 1.3 (1.0–1.6) | 1.4 (1.1–1.8) |
| ≥ 70 | 16 886 | 3 (3–4) | Reference | Reference |
| Gender | ||||
| Male | 28 327 | 7 (6–7) | 1.2 (1.0–1.3) | 1.1 (1.0–1.3) |
| Female | 34 693 | 6 (5–6) | Reference | Reference |
| Level of education | ||||
| Less than secondary | 7251 | 10 (9–11) | 3.3 (2.6–4.1) | 4.9 (3.8–6.3) |
| Secondary | 13 785 | 8 (7–8) | 2.5 (2.0–3.1) | 2.9 (2.3–3.6) |
| Postsecondary below bachelor’s degree | 22 398 | 7 (6–7) | 2.2 (1.8–2.7) | 2.3 (1.8–2.8) |
| Bachelor’s degree or above | 16 818 | 3 (3–4) | Reference | Reference |
| Population group | ||||
| First Nations (off reserve) | 1088 | 14 (11–17) | 2.5 (1.7–3.7) | 1.8 (1.2–2.7) |
| Métis | 1186 | 10 (7–13) | 1.7 (1.1–2.5) | 1.2 (0.8–1.9) |
| Black | 1082 | 11 (8–14) | 1.9 (1.2–3.0) | 1.7 (1.1–2.6) |
| Arab | 459 | 9‡ (6–13) | 1.5 (0.8–2.7) | 1.6 (0.8–3.0) |
| Chinese | 1863 | 4‡ (3–6) | 0.7 (0.4–1.2) | 0.7 (0.4–1.2) |
| South Asian | 1500 | 2‡ (1–4) | 0.4 (0.2–0.8) | 0.3 (0.1–0.7) |
| White | 52 520 | 6 (6–6) | Reference | Reference |
Note: CI = confidence interval, OR = odds ratio.
↵* Sample sizes for proportions and simple logistic regression models do not total 64 722 owing to missing values in predictor and outcome variables. Sample size for the multiple logistic regression was 63 020.
↵† All variables listed were included in the multiple logistic regression model.
↵‡ Estimate has a large variability and should be interpreted with caution.