Table 6

Deaths from all causes and the reductions of deaths according to age and vaccination status, 2003 – 2005.

Age
65 – 74
75 – 84
≥ 85
Vaccinated
yes
no
yes
no
yes
no

2003 Influenza season






     Deaths/100 000
491
706
2235
2270
7224
7317
     Reduction (95% CI) p
31% (0,44–1,07) < 0.1
2% (0,79–1,22) < 0.9
1% (0,81–1,20) < 0.9
Non-influenza season






     Deaths/100 000
610
767
2440
2332
6677
7580
     Reduction (95% CI) p
21% (0,53–1,18) < 0.6
- 5% (0,85–1,28) < 0.9
12% (0,72–1,07) < 0.2
2004 Influenza season






     Deaths/100 000
973
837
2012
2566
8401
8974
     Reduction (95% CI) p
- 16% (0,85–1,59) < 0.4
22% (0,62–0,97) < 0.03
7% (0,78–1,12) < 0.4
Non-influenza season






     Deaths/100 000
730
646
2028
2214
7667
8171
     Reduction (95% CI) p
- 12% (0,79–1,65) < 0.5
9% (0,72–1,15) < 0.5
7% (0,77–1,13) < 0.5
2005 Influenza season






     Deaths/100 000
502
882
2144
2829
6979
8882
     Reduction (95% CI) p
43% (0,40–0,82) < 0.002
25% (0,62–0,92) < 0.01
23% (0,64–0,92) < 0.01
Non-influenza season






     Deaths/100 000
698
813
1761
2188
6942
7676
     Reduction (95% CI) p
14% (0,61–1,20) < 0.4
20% (0,64–1,0) < 0.06
11% (0,73–1,08) < 0.3

Christenson et al. Virology Journal 2008 5:52   doi:10.1186/1743-422X-5-52