Table 3.
The scanning results of Spatial-Temporal Clusters for serve HFMD cases among children in Chongqing, 2013–2018
| Cluster type | Time frame | Cluster areas | Observed cases | Expected cases | Radius/(km2) | RR | LLR | Specific districts | p |
|---|---|---|---|---|---|---|---|---|---|
| Most likely | 2015/1–2017/7 | 5 | 153 | 30.86 | 92.87 | 6.93 | 142.123460 | Kaixian, Yunyang, Wanzhou, Chengkou, Liangping | 0.001* |
| Secondary | 2015/3–2015/7 | 1 | 50 | 1.18 | 0 | 47.58 | 141.361975 | Fuling | 0.001* |
| 2nd Secondary | 2018.7 | 4 | 11 | 0.54 | 17.55 | 20.75 | 22.766941 | Yuzhong, Nanan, Dadukou. Jiangbei | 0.001* |
Note: LLR Log likelihood ratio, RR Relative risk. * p < 0.01