Objective To understand the spatial distribution and epidemic characteristics of current cases of schistosomiasis in Anqing City and guide the prevention and control of schistosomiasis. Methods The information of schistosomiasis cases in Anqing City was collected,and the spatial database of township level was established.Through descriptive statistical analysis and spatial statistical analysis,the spatial distribution and epidemic characteristics of schistosomiasis cases in Anqing City were expounded. Results A total of 9 922 cases of schistosomiasis were reported,including 8 133 cases of chronic schistosomiasis and 1 789 cases of advanced schistosomiasis.The occupation of chronic and advanced schistosomiasis cases were mainly farmers,accounting for 92.82% (7 549 / 8 133) and 92.57% (1 656 / 1 789),respectively.Global autocorrelation analysis showed that there was a spatial autocorrelation in the prevalence of chronic schistosomiasis (Moran's I=0.3088,Z=6.8534,P＜0.01),and in the prevalence of advanced schistosomiasis (Moran's I=0.2446,Z=6.9193,P＜0.01).The results of local autocorrelation analysis showed that the areas with high prevalence of chronic and advanced schistosomiasis were in the towns around Daguan District of the Yangtze River,Qili Lake and Wanhe river system,and the areas with high prevalence of chronic schistosomiasis were larger than those with high prevalence of advanced schistosomiasis. Conclusion There were positive spatial autocorrelation and local spatial aggregation in the distribution of chronic and advanced schistosomiasis cases in Anqing City.Prevention and control should be focused on the areas with high prevalence of schistosomiasis.
Key words
Schistosomiasis /
Spatial autocorrelation analysis /
Geographic information system /
Spatial distribution /
Spatial statistics
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