From: Spatiotemporal analysis of indigenous and imported dengue fever cases in Guangdong province, China
Type of cluster | No. counties in the cluster | Radius (km) | Duration | Population | Relative risk | Log likelihood ratio | P-value |
---|---|---|---|---|---|---|---|
With a maximum spatial cluster size of ≤50% of total population | |||||||
1. all cases | |||||||
M* | 11 | 50.43 | 2006/8-2006/11 | 10,394,229 | 135.18 | 2688.65 | <0.001 |
S† | 1 | 0 | 2006/9-2006/10 | 862,662 | 429.69 | 886.44 | <0.001 |
2. indigenous cases | |||||||
M* | 11 | 50.43 | 2006/8-2006/11 | 10,394,229 | 153.56 | 2760.44 | <0.001 |
S† | 1 | 0 | 2006/9-2006/10 | 862,662 | 471.25 | 902.08 | <0.001 |
3. imported cases | |||||||
M* | 26 | 89.80 | 2008/4-2010/12 | 32,795,835 | 7.52 | 44.66 | <0.001 |
With a maximum spatial cluster size of ≤10% of total population | |||||||
1. all cases | |||||||
same to that with a maximum spatial cluster size of ≤50% of total population | |||||||
2. indigenous cases | |||||||
same to that with a maximum spatial cluster size of ≤50% of total population | |||||||
3. imported cases | |||||||
M* | 6 | 27.00 | 2008/4-2010/10 | 7,608,517 | 10.95 | 36.19 | <0.001 |
S† | 6 | 19.47 | 2007/4-2007/11 | 6,013,893 | 13.81 | 13.27 | 0.02 |
S† | 3 | 39.40 | 2007/10 | 1,342,186 | 162.28 | 12.24 | 0.03 |