| Characteristic | Patients, no. (%)n = 47 301 | Patients who received vaccine, %n = 18 684 |
|---|---|---|
| Canadian Community Health Survey cycle | ||
| 2007/08 | 33 840 (71.5) | 38.9 |
| 2009/10 | 13 461 (28.5) | 41.1 |
| Sex | ||
| Female | 25 904 (54.8) | 42.4 |
| Male | 21 397 (45.2) | 36.1 |
| Age group, yr | ||
| 12-17 | 4071 (8.6) | 24.8 |
| 18-49 | 20 247 (42.8) | 23.6 |
| 50-64 | 11 815 (25.0) | 44.6 |
| ≥ 65 | 11 168 (23.6) | 68.4 |
| Residence* | ||
| Urban | 37 406 (79.1) | 39.3 |
| Rural | 9802 (20.7) | 40.4 |
| Neighbourhood income quintile† | ||
| 1 (lowest) | 9342 (19.7) | 40.3 |
| 2 | 9402 (19.9) | 39.6 |
| 3 | 9467 (20.0) | 39.5 |
| 4 | 9568 (20.2) | 38.7 |
| 5 (highest) | 9330 (19.7) | 39.7 |
| Has regular doctor | ||
| Yes | 43 110 (91.1) | 41.3 |
| No | 4191 (8.9) | 21.7 |
| Risk factors for serious influenza infections‡ | ||
| Hypertension | 13 826 (29.2) | 61.7 |
| Asthma | 6225 (13.2) | 44.0 |
| Diabetes | 4877 (10.3) | 63.7 |
| Cancer | 2572 (5.4) | 64.4 |
| COPD | 1596 (3.4) | 70.5 |
| Congestive heart failure | 1235 (2.6) | 74.0 |
| Myocardial infarction | 928 (2.0) | 69.6 |
| Chronic kidney disease | 886 (1.9) | 68.9 |
| Morbid obesity§ | 866 (1.8) | 43.7 |
| Stroke | 861 (1.8) | 66.0 |
| Immunosuppression | 679 (1.4) | 74.7 |
| Pregnancy¶ | 512 (1.1) | 18.0 |
| Dementia | 245 (0.5) | 64.5 |
| None of the above | 25 924 (54.8) | 27.3 |
Note: COPD = chronic obstructive pulmonary disease.
*Missing data on 95 patients.
†Missing data on 192 patients.
‡May add up to more than 100%; patients may have more than 1 risk factor.
§Body mass index > 40.
¶Date of delivery between Nov. 1 and June 1.