Volume 15, Number 4—April 2009
THEME ISSUE
The Amazon Region
Dispatches
Spatial Distribution of Leprosy in the Amazon Region of Brazil
Maria L.F. Penna
, Maria L. Wand-del-Rey de Oliveira, and Gerson Penna
, Maria L. Wand-del-Rey de Oliveira, and Gerson Penna
Table 1
Ten most probable clusters of leprosy defined by using spatial scan statistics, Brazil, 2005–2007*
| Cluster order | No. cases |
RR | LLR | |
|---|---|---|---|---|
| Observed | Expected | |||
| 1 | 24,564 | 6,345.04 | 4.59 | 16,545.44 |
| 2 | 9,735 | 2,224.77 | 4.67 | 7,099.49 |
| 3 | 4,136 | 928.37 | 4.58 | 3,014.57 |
| 4 | 6,944 | 2,912.92 | 2.47 | 2,070.23 |
| 5 | 5,778 | 2,424.91 | 2.45 | 1,711.11 |
| 6 | 5,891 | 2,674.40 | 2.26 | 1,479.21 |
| 7 | 2,223 | 1,039.11 | 2.16 | 512.49 |
| 8 | 1,325 | 476.37 | 2.80 | 509.78 |
| 9 | 3,288 | 1,799.11 | 1.85 | 502.97 |
| 10 | 1,473 | 581.84 | 2.55 | 480.32 |
*RR, relative risk for the cluster compared with the rest of the country; LLR, log likelihood ratio. p<0.001 for all comparisons.
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