Spatial analysis on tuberculosis epidemic in China based on geographic information system,2002-2011

ObjectiveTo analyze the epidemic characteristics of tuberculosis epidemic in China in 2002-2011.MethodsThe data on tuberculosis incidence in China were collected and linked to the digital map at administrative county level with ArcGIS 10.0 software for spatial analysis.ResultsThe incidence maps of tuberculosis and spatial autocorrelation analysis showed that the spatial aggregation existed in tuberculosis epidemic during 2002-2011.Local Moran's I and Getis-Ord General G spatial autocorrelation analysis identified the "high incidence region" and "hot pot region".ConclusionThe incidence of tuberculosis is of obviously geographical distribution in China.And spatial clustering nature of tuberculosis incidence between 2002 and 2011 in China appeared to be moderate or high.However,further investigation is needed to address this changing trend.