Data Years | Cluster Areas(n) | Cluster Years | Observed Cases | Expected Cases | Relative Risk | p-value |
---|---|---|---|---|---|---|
1999–2004 | 13 | 2000 | 354 | 287.8 | 1.23 | 0.015 |
2000–2004 | 13 | 2000 | 354 | 282.1 | 1.26 | 0.001 |
2001–2004 | 4 | 2001 | 216 | 178.3 | 1.21 | 0.400 |
2002–2004 | 1 | 2002 | 8 | 3.1 | 2.58 | 0.696 |
2003–2004 | 4 | 2004 | 20 | 12.5 | 1.60 | 0.568 |