Table 2. Main characteristics of cases occurring between 1 June 2009 and 30 June 2013 by vaccination status.
| Received seasonal vaccine* | Received pandemic vaccine | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Yes n = 2408 |
No n = 3880 |
p-value | Yes n = 901 |
No n = 5387 |
p-value | |||||
| Demographics | ||||||||||
| Female (n (%)) | 1313 | (54.53) | 1881 | (48.48) | < .0001 | 454 | (50.39) | 2740 | (50.86) | 0.79 |
| Mean age in years (SD) | 58.59 | (18.07) | 36.56 | (16.51) | < .0001 | 56.75 | (19.64) | 43.03 | (19.61) | < .0001 |
| Age (n (%)) | ||||||||||
| <45 yrs | 532 | (22.09) | 2685 | (69.20) | 212 | (23.53) | 3005 | (55.78) | ||
| 45–65 yrs | 897 | (37.25) | 1052 | (27.11) | 357 | (39.62) | 1592 | (29.55) | ||
| >65 yrs | 979 | (40.66) | 143 | (3.69) | < .0001 | 332 | (36.85) | 790 | (14.66) | < .0001 |