Volume 20, Number 10—October 2014
Research
Influenza-Associated Hospitalizations, Singapore, 2004–2008 and 2010–2012
Li Wei Ang
, Cindy Lim, Vernon Jian Ming Lee, Stefan Ma, Wei Wei Tiong, Peng Lim Ooi, Raymond Tzer Pin Lin, Lyn James, and Jeffery Cutter
, Cindy Lim, Vernon Jian Ming Lee, Stefan Ma, Wei Wei Tiong, Peng Lim Ooi, Raymond Tzer Pin Lin, Lyn James, and Jeffery Cutter
Table 2
Age-specific hospitalization rates (per 100,000 person-years) for pneumonia and influenza in Singapore during 2 study periods, 2004–2008 and 2010–2012
| Hospitalization rates per 100,000 person-years |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Age group | Study period 1 |
Study period 2 |
|||||||
| 2004 | 2005 | 2006 | 2007 | 2008 | 2010 | 2011 | 2012 | ||
| 0–5 m | 531.9 | 514.9 | 437.3 | 720.6 | 813.9 | 791.4 | 1107.4 | 751.8 | |
| 6–23 m | 609.3 | 691.9 | 516.1 | 618.3 | 721.3 | 678.9 | 804.4 | 671.8 | |
| 2–4 y | 727.8 | 803.2 | 564.3 | 676.5 | 702.6 | 619.7 | 800.0 | 678.2 | |
| 5–14 y | 127.9 | 186.5 | 93.8 | 115.2 | 140.8 | 129.2 | 171.3 | 173.0 | |
| 15–24 y | 52.1 | 59.0 | 49.0 | 48.1 | 43.0 | 49.4 | 44.2 | 51.6 | |
| 25–44 y | 46.6 | 49.2 | 48.9 | 49.5 | 52.5 | 43.4 | 46.9 | 49.5 | |
| 45–64 y | 153.5 | 164.5 | 159.8 | 179.6 | 172.4 | 191.9 | 191.7 | 207.7 | |
| 65–74 y | 773.5 | 781.2 | 746.8 | 803.6 | 793.2 | 787.2 | 827.8 | 894.4 | |
| ≥75 y | 3,310.1 | 3,481.5 | 3,319.3 | 3,678.0 | 3,593.4 | 3,487.8 | 3,765.7 | 3,784.9 | |
| All | 226.3 | 248.8 | 220.6 | 245.1 | 243.7 | 297.9 | 327.3 | 334.3 | |
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