Table 3.
Statistically significant county-level high incidence and low incidence spatial clusters of Hand, Foot, and Mouth Disease identified using the Local Indicator for Spatial Autocorrelation in GeoDa software (http://geodacenter.github.io/download.html)
| Type | County Name | Mean IRa | Local Moran | P-value |
|---|---|---|---|---|
| High-Risk Cluster | Huzhu | 511.0 | 0.47 | 0.002 |
| Chengdong | 1902.0 | 4.78 | 0.001 | |
| Chengzhong | 2040.8 | 7.08 | 0.001 | |
| Chengbei | 1849.5 | 4.80 | 0.001 | |
| Chengxi | 1387.0 | 4.55 | 0.005 | |
| Low-Risk Cluster | Chindu | 0.0 | 0.31 | 0.034 |
| Zhidoi | 12.8 | 0.28 | 0.043 | |
| Nangqeen | 12.7 | 0.33 | 0.007 | |
| Qumarleeb | 22.0 | 0.27 | 0.013 | |
| Yushu | 4.3 | 0.33 | 0.001 | |
| Golmud | 155.1 | 0.15 | 0.003 | |
| Zadoi | 3.9 | 0.29 | 0.043 |
aIR Incidence Rate, per 100,000 children 0–5 years of age
Rates were calculated as the mean annual incidence rate for children less than 6 years of age for the seven-year study period