Table 4.
Year | Cluster time frame | Observed cases | Expected cases | RR | LLR | p-value |
---|---|---|---|---|---|---|
2004 | 2004/6/1-2004/9/30 | 2184 | 882.00 | 9.45 | 1361.30 | 0.00 |
2005 | 2005/6/1-2005/9/30 | 1060 | 505.72 | 4.66 | 422.45 | 0.00 |
2006 | 2006/6/1-2006/9/30 | 1190 | 583.59 | 4.26 | 437.84 | 0.00 |
2007 | 2007/5/1-2007/9/30 | 1258 | 720.57 | 3.78 | 344.75 | 0.00 |
2008 | 2008/5/1-2008/9/30 | 699 | 445.20 | 2.66 | 122.54 | 0.00 |
2009 | 2009/5/1-2009/9/30 | 436 | 285.46 | 2.47 | 67.31 | 0.00 |
2010 | 2010/5/1-2010/9/30 | 228 | 163.48 | 1.95 | 21.54 | 0.00 |
2011 | 2011/2/1-2011/6/30 | 55 | 32.88 | 3.15 | 12.45 | 0.00 |
RR: Relative risk; LLR: Log likelihood ratio.