Table 1 Ratios of post-vaccination to pre-vaccination pneumonia hospitalisation rates, Australia, July 1998 to June 2011, adjusted for seasonal and pre-vaccine trends.
Years post-vaccination | <2 years | 2–4 years | 5–17 years | 18–39 years | 40–64 years | >65 years |
|---|---|---|---|---|---|---|
0–2.5 | 0.62* | 0.72* | 0.89* | 0.92* | 0.96* | 0.97 |
0–6.5 | 0.68* | 0.80* | 0.94 | 0.98 | 1.05 | 1.03 |