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Table 1 Details of the spatial clusters of PRRS in Thailand in 2010

From: Spatial epidemiology of porcine reproductive and respiratory syndrome in Thailand

Cluster (period*) Location Area (km2) Log likelihood ratio P-value (999) Relative risk Prevalence
1 (2nd) The South-East of region 3 91.36 30.93 0.001 8.73 0.068
2 (1st, 2nd) The West of region 2 39.86 20.47 0.001 16.59/8.07 0.061/0.082
3 (1st, 2nd) The South-East of region 8 49.48 19.39 0.001 24.68/1.65 0.081/0.018
4 (1st, 2nd) The South-West of region 4 43.09 17.22 0.001 15.04/6.32 0.056/0.064
5 (2nd) The North-East of region 6 42.95 16.73 0.004 13.41 0.13
6 (1st) The North of region 4 26.98 14.42 0.012 47.12 0.18
  1. *The 1st period was during January to July 2010 and the 2nd period was during August to December 2010.
  2. Characteristics of the six spatial clusters of PRRS in Thailand in 2010 identified using the spatial scan statistic with multivariate scan test (January to July 2010 and August to December 2010), cluster size of a maximum of 20% of observations, 999 iterations, and Bernoulli model.