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 1^st iteration¹

Observed^a

43182

Expected^b

2443

RR^c

39.746

P-value

0.001

Cluster radius (km)

79.50

Observed^a

43182

7

2890

281

60

The 2^st iteration²

Expected^b

2443

0.39

2245

208

40

RR^c

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

0^d

102.61

0^d

0^d

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