Table 1

SaTScan statistics for the most likely cluster, Anhui province, China, 2000–2006.





Secondary clusters




SaTScan statistics

Most
Likely
cluster
2
3
4
5

The 1st iteration1
Observeda
43182





Expectedb
2443





RRc
39.746





P-value
0.001





Cluster radius (km)
79.50





Observeda
43182
7
2890
281
60
The 2st iteration2
Expectedb
2443
0.39
2245
208
40

RRc
39.746
18.068
1.299
1.351
1.504

P-value
0.001
0.001
0.001
0.001
0.794

Cluster radius (km)
79.50
0d
102.61
0d
0d

a: The number of observed cases in a cluster.

b: The number of expected cases in a cluster.

c: Relative risk.

d: Only 1 county was included in the cluster.

1: Maxmum cluster size set at 50% of the study population.

2: Maxmum cluster size set at 25% of the study population.

Zhang et al. Malaria Journal 2008 7:206   doi:10.1186/1475-2875-7-206