The results of the global Moran’s tests for all cases related to the 68 sub-districts are statistically significant (z-score greater than 1.65) and indicate spatial heterogeneity. The
global spatial autocorrelation analysis with Moran index showed that the spatial distribution of diarrhea morbidity rate was clustered, for all years (2009-2011). This information is a major finding to suggest public health departments that diarrhea is occurring in cluster and not spread randomly throughout the province.