|
Incidence and reduction of hospital admissions and in-hospital treatment (days) for influenza with or without respiratory disease per 100 000 in vaccinated and unvaccinated cohorts during the influenza seasons (1 December – 31 May), 2003 – 2005. |
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| Hospital admission |
In-hospital treatment |
||||||||
|
|
|
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| Incidence |
Reduction |
Incidence |
Reduction |
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|
|
|
|
|
||||||
| Age-group |
Vaccinated |
Unvaccinated |
(95% CI) |
p |
Vaccinated |
Unvaccinated |
(95% CI) |
p |
|
|
|
|||||||||
| 2003 |
|||||||||
| 65 – 79 |
0 |
19 |
0 |
98 |
|||||
| ≥ 80 |
39 |
103 |
62% (0,08–1,84) |
< 0.2 |
254 |
826 |
69% (0,17–0,57) |
< 0.001 |
|
| 2004 |
|||||||||
| 65 – 79 |
55 |
63 |
14% (0,46–1,59) |
< 0.8 |
175 |
379 |
54% (0,27–0,80) |
< 0.01 |
|
| ≥ 80 |
301 |
297 |
- 1% (0,53–1,90) |
< 0.96 |
1683 |
3073 |
46% (0,43–0,69) |
< 0.001 |
|
| 2005 |
|||||||||
| 65 – 79 |
83 |
103 |
20% (0,36–1,76) |
< 0.6 |
471 |
540 |
13% (0,62–1,40) |
< 0.4 |
|
| ≥ 80 |
441 |
351 |
- 21% (0,73–2,2) |
< 0.5 |
2684 |
2297 |
- 15% (0,94–1,45) |
< 0.2 |
|
Christenson et al. Virology Journal 2008 5:52 doi:10.1186/1743-422X-5-52 |
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