Table 1.
Demographic characteristics of the persons
| Characteristic | Value for: |
||
|---|---|---|---|
| All personsa (n = 498) | Persons not annually vaccinated with seasonal influenza virus vaccine (n = 443) | Persons annually vaccinated with seasonal influenza virus vaccine (n = 54) | |
| Age (yr) | |||
| Mean | 43 | 43 | 48 |
| Median | 44 | 44 | 49 |
| Range | 19–66 | 19–63 | 19–66 |
| No. (%) vaccinated: | |||
| Before 2000 | 32 (59.2) | ||
| From 2001-2004 | 13 (24.1) | ||
| After 2005 | 9 (16.7) | ||
| No. (%) of gender | |||
| Male | 155 (31.1) | 131 (29.6) | 24 (44.4) |
| Female | 343 (68.9) | 312 (70.4) | 30 (55.6) |
| No. (%) with comorbidity | |||
| None | 457 (91.8) | 416 (93.9) | 40 (74.1) |
| COPD/asthma | 9 (1.8) | 4 (0.9) | 5 (9.2) |
| Diabetes mellitus | 3 (0.6) | 0 (0) | 3 (5.6) |
| Thyroidism | 6 (1.2) | 6 (1.4) | 0 (0) |
| Rheumatoid arthritis | 4 (0.8) | 3 (0.7) | 1 (1.9) |
| Other | 19 (3.8) | 14 (3.1) | 5 (9.2) |
| Total with comorbidity | 41 (8.2) | 27 (6.1) | 14 (25.9) |
a
For one of the patients, the status of the seasonal influenza virus vaccination was missing.