Table 2. Characteristics of the patients who were sampled and those who had received seasonal influenza vaccination.
| All swabs (n = 648) | Vaccinated patients (n = 193) | Unvaccinated patients (n = 455) | |
|---|---|---|---|
| Sex | |||
| Males | 263 (40.6%) | 66 (34.2%) | 197 (43.3%) |
| Females | 385 (59.4%) | 127 (65.8%) | 258 (56.7%) |
| Age | |||
| 0–17 years | 233 (36.0%) | 61 (31.6%) | 172 (37.8%) |
| 18–64 years | 349 (53.8%) | 77 (39.9%) | 272 (59.8%) |
| ≥65 years | 66 (10.2%) | 55 (28.4%) | 11 (2.4%) |
| Ethnicity | |||
| White ethnicity | 396 (61.1%) | 130 (67.4%) | 266 (58.5%) |
| All other ethnicity | 66 (10.2%) | 20 (10.4%) | 46 (10.1%) |
| Ethnicity unknown | 186 (28.7%) | 43 (22.2%) | 143 (31.4%) |
| IMD Quintile | |||
| 1 (most deprived) | 41 (6.3%) | 9 (4.7%) | 32 (7.0%) |
| 2 | 64 (9.9%) | 20 (10.4%) | 44 (9.7%) |
| 3 | 120 (18.5%) | 35 (18.1%) | 85 (18.7%) |
| 4 | 188 (29.0%) | 56 (29.0%) | 132 (29.0%) |
| 5 (least deprived) | 216 (33.3%) | 71 (36.8%) | 145 (31.9%) |
| Unknown | 19 (3.0%) | 2 (1.0%) | 17 (3.7%) |
| Risk group | |||
| Y | 175 (27.0%) | 116 (60.1%) | 59 (13.0%) |
| N | 473 (73.0%) | 77 (39.9%) | 396 (87.0%) |
| Average number of GP visits in last 12 months | 27.6 | 41.7 | 21.6 |
| (95% CI: 25.7–29.5) | (95% CI: 37.3–46.0) | (95% CI: 19.9–23.3) | |
| Average number hospitalisations in last 12 months | 1.4 | 1.6 | 1.4 |
| (95% CI: 1.3–1.5) | (95% CI: 1.3–1.8) | (95% CI: 1.2–1.5) | |
| Influenza vaccination in last season | |||
| Y | 181 (27.9%) | 135 (69.9%) | 46 (10.1%) |
| N | 467 (72.1%) | 58 (30.1%) | 409 (89.9%) |
| Pregnant | |||
| Y | 11 (1.7%) | 7 (3.6%) | 4 (1.0%) |
| N | 637 (98.3%) | 186 (96.4%) | 451 (99.0%) |
| Pneumococcal vaccination | |||
| Y | 177 (27.3%) | 73 (37.8%) | 104 (22.9%) |
| N | 471 (72.7%) | 120 (62.2%) | 351 (77.1%) |