Unadjusted and adjusted prevalence ratios for influenza vaccination
| Variable | Prevalence ratio (95%CI) | |
|---|---|---|
| Unadjusted | Adjusted* | |
| Presence of pharmacist policy | 1.08 (1.06–1.10) | 1.05 (1.02–1.08) |
| Universal funding for influenza vaccines | 1.20 (1.18–1.21) | 1.13 (1.10–1.17) |
| Age group, yr | ||
| 12–19 (ref) | 1.00 (ref) | 1.00 (ref) |
| 20–49 | 0.91 (0.88–0.94) | 0.78 (0.74–0.81) |
| 50–64 | 1.60 (1.55–1.65) | 1.18 (1.12–1.24) |
| ≥ 65 | 3.05 (2.96–3.13) | 2.06 (1.96–2.17) |
| Female sex | 1.24 (1.22–1.26) | 1.17 (1.15–1.19) |
| Province/territory | ||
| Newfoundland and Labrador | 1.08 (1.03–1.13) | 1.01 (0.97–1.06) |
| Prince Edward Island | 1.32 (1.26–1.39) | 1.12 (1.05–1.18) |
| Nova Scotia | 1.87 (1.81–1.93) | 1.60 (1.55–1.66) |
| New Brunswick | 1.45 (1.41–1.51) | 1.33 (1.28–1.38) |
| Quebec | 1.00 (ref) | 1.00 (ref) |
| Ontario | 1.40 (1.37–1.43) | 1.21 (1.16–1.26) |
| Manitoba | 1.22 (1.17–1.27) | 1.13 (1.08–1.18) |
| Saskatchewan | 1.26 (1.21–1.30) | 1.16 (1.12–1.21) |
| Alberta | 1.25 (1.21–1.29) | 1.19 (1.15–1.24) |
| British Columbia | 1.32 (1.28–1.36) | 1.25 (1.21–1.29) |
| Nunavut | 1.55 (1.45–1.67) | 2.54 (2.32–2.78) |
| Northwest Territories | 1.49 (1.41–1.58) | 1.88 (1.76–2.02) |
| Yukon | 1.46 (1.29–1.45) | 1.36 (1.27–1.45) |
| Chronic condition | ||
| Asthma | 1.29 (1.26–1.32) | 1.24 (1.21–1.27) |
| COPD | 1.64 (1.59–1.69) | 1.20 (1.16–1.23) |
| Heart disease | 2.13 (2.09–2.18) | 1.20 (1.17–1.22) |
| Stroke | 1.87 (1.79–1.95) | 1.02 (0.98–1.06) |
| Diabetes | 2.05 (2.01–2.09) | 1.25 (1.23–1.28) |
| Cancer | 1.92 (1.86–1.98) | 1.15 (1.12–1.19) |
| Has regular doctor | 2.52 (2.43–2.61) | 1.67 (1.61–1.74) |
| Influenza season | ||
| 2006/07 | 1.00 (ref) | 1.00 (ref) |
| 2007/08 | 0.93 (0.90–0.96) | 0.93 (0.91–0.96) |
| 2008/09 | 0.94 (0.91–0.97) | 0.92 (0.90–0.95) |
| 2009/10 | 0.81 (0.78–0.83) | 0.91 (0.87–0.94) |
| 2010/11 | 0.89 (0.86–0.92) | 0.86 (0.84–0.89) |
| 2011/12 | 0.87 (0.85–0.90) | 0.81 (0.78–0.84) |
| 2012/13 | 0.87 (0.84–0.90) | 0.79 (0.76–0.82) |
| 2013/14 | 0.96 (0.93–0.99) | 0.85 (0.82–0.88) |
Note: CI = confidence interval, COPD = chronic obstructive pulmonary disease, ref = reference category.
↵* The multivariable regression model included a sample of 456 881 respondents for whom there was complete information on all covariates. In addition to the variables in this table, the model was adjusted for the following: location of residence, household income, educational attainment, marital status, immigration status, racial/cultural group, self-reported health status, category of body mass index, having a child less than 5 yr of age in household, smoking status and receipt of influenza A/H1N1 pandemic vaccine in 2009 (see Appendix 2, available at www.cmaj.ca/lookup/suppl/doi:10.1503/cmaj.151027/-/DC1).