Table 4.
Space–time clustering of P. vivax and P. falciparum malaria in China, 2005–2014
| Malaria parasites | Clusters | Latitude | Longitude | Start/end date | N | Observed cases | Exp. case | RR | p value |
|---|---|---|---|---|---|---|---|---|---|
| P. vivax | Most likely | 24.73918 | 98.31948 | 2005/2009 | 10 | 7011 | 67.29 | 170.70 | 0.001 |
| Secondary | 23.52086 | 108.63520 | 2013/2013 | 24 | 955 | 1.13 | 895.75 | 0.001 | |
| P. falciparum | Most likely | 33.03381 | 117.03400 | 2005/2009 | 32 | 10,829 | 2538.07 | 103.88 | 0.001 |
| Secondary | 24.03683 | 97.80955 | 2005/2009 | 26 | 18,919 | 385.80 | 54.61 | 0.001 |
N number of counties per cluster, RR indicates relative risk for malaria case in the location. Obs. case observed number of case in the cluster, Exp. case expected number of cases in the cluster