From: Effect of influenza and pneumococcal vaccines in elderly persons in years of low influenza activity
Influenza vaccinated | Influenza and pneumococcal | Non-vaccin | ||||||
---|---|---|---|---|---|---|---|---|
Incidence | Reduction (95% CI) | p | Incidence | Reduction (95% CI) | p | Incidence | ||
2003 | Influenza season | |||||||
65 – 79 years | 3812 | - 25% (1,09–1,52) | < 0.01 | 4175 | - 32% 1,19–1,77) | < 0.001 | 2914 | |
Non-influenza season | ||||||||
65 – 79 years | 6353 | - 72% (3,03–4,08) | < 0.001 | 944 | 50% (0,35–0,75) | < 0.001 | 1889 | |
2004 | Influenza season | |||||||
65 – 79 years | 1537 | 53% (0,36–0,62) | < 0.001 | 2491 | 24% (0,63–0,92) | < 0.005 | 3265 | |
Non-influenza season | ||||||||
65 – 79 years | 4279 | - 38% (1,35–1,92) | < 0.001 | 3051 | - 12% (0,74–1,05) | < 0.2 | 2687 | |
2005 | Influenza season | |||||||
65 – 79 years | 1658 | 62% (0,28–0,51) | < 0.01 | 3046 | 29% (0,62–0,82) | < 0.001 | 4215 | |
Non-influenza season | ||||||||
65 – 79 years | 360 | 77% (0,07–0,25) | < 0.001 | 2536 | 5% (0,81–1,11) | < 0.7 | 2647 |