Year | Cluster time frame | Obsa | Expb | Relative risk | LLRc | P |
---|---|---|---|---|---|---|
2005 | 2005/3/1 - 2005/8/31 | 215 | 175.93 | 1.58 | 8.83 | 0.00 |
2006 | 2006/5/1 - 2006/10/31 | 202 | 153.25 | 1.95 | 15.95 | 0.00 |
2007 | 2007/3/1 - 2007/4/30 | 48 | 30.58 | 1.77 | 5.25 | 0.02 |
2008 | 2008/1/1 - 2008/5/31 | 45 | 33.64 | 1.76 | 3.22 | 0.11 |
2009 | 2009/2/1 - 2009/7/31 | 18 | 11.90 | 3.05 | 3.24 | 0.12 |