| Objective:To explore the epidemiologic characteristics and space distribution of in factious diarrheal diseases in the rural areas of Zaozhuang from 2014 to 2016 with geographic information system(GIS),and to provide scientific evidence for prevention and optimizing the allocation of public health resources of the epidemic.Methods:The information about infectious diarrheal in the rural areas of Zaozhuang from2014 to 2016 were collected.Using SPSS19.0 and Excel2010 software,the collected data were entered,collated and analyzed to describe the three distribution characteristics of the incidence of infectious diarrhoeal disease.Using ArcGIS 10.2 software,the global spatial autocorrelation and local spatial autocorrelation of the incidence of infectious diarrhea were analyzed,the spatial distribution characteristics of infectious diarrhea were described,and the incidence trend of infectious diarrhea disease in Zaozhuang area was estimated by Kriging spatial interpolation analysis.Results:1.A total of 2480 cases of infectious diarrheal were reported during 2014 to 2016,the incidence rate was 29.7/100000,30.6/100000 and 36.9/100000 respectively,which showed a gradually increase trend.Male had significantly higher incidence of infectious diarrhea disease(40.1/100000)than female(24.0/100000),The male-to-female sex ratio was 1.81.There were significant difference between male and female of incidence of infectious diarrheal disease from 2014 to 2016(?~2=7.504,P=0.02).All ages were affected,52.0%of the total cases were younger than 5 years old(N=1290),16.6%of the total cases were older than 55 years old.46.9%of the total cases were scattered children(N=1162),34.2%of the total cases were farmer(N=847),and 4.7%of the total cases were student(N=117),4.4%of the total cases were worker(N=109),3.0%of the total cases were childcare children(N=75).Reports of infectious diarrhea disease are available throughout the year,which had obvious seasonal character,which reached the peaks in June to July in summer and October to November in autumn.2.Global spatial autocorrelation Moran's I showed that the infectious diarrheal cases existed spatial autocorrelation in 2015 and 2016(Moran's I=0.18,P=0.047;Moran'sI=0.29,P=0.006).The average incidence rate and the 3-year high/low clustering index of 2014-2016 were 0.069,0.064,0.068,and 0.070,respectively,and P was greater than 0.05,indicating that there was no high/low clustering in the incidence of infectious diarrhea disease.3.Getis-Ord Gi*analysis showed that the distribution of infectious diarrheal presented different aggregate type in the administrative area,5 areas including Xuzhuang Town,Fucheng Town,Qicun Town,Xiji Town and Yangzhuang Town were the areas with high incidence(Z>1.96).The results of Anselin Local Moran's I showed that the high-high aggregation was distributed in the area of Fucheng Town in 2014.The high-high aggregation was distributed in the area of Fucheng Town and Xiji Town in 2015.The high-high aggregation was distributed in the area of 3 towns including Xuzhuang Town,Fucheng Town and Xiji Town in 2016.4.The results from Kriging spatial interpolation suggested that the area with high incidence is mainly located in the central and eastern of Zaozhuang city,the overall distribution of infectious diarrheal from the midlands to the north and south presented a reducing straight line.The distribution of infectious diarrheal in the rural areas of Zaozhuang showed spatial aggregation,the highest prevalence region was in the central and eastern.Conclusion:1.Infectious diarrhea is one of the infectious diseases that should be focused on in the city of zao zhuang.High incidence among male and younger than 5 years old scattered children,which were Priority targets.2.The incidence of infectious diarrhea is spatially high in the central and eastern regions,and the tendency to gradually decrease in other directions should be used as a guide to determine the key prevention and control areas of infectious diarrhea and optimize the allocation of public health resources. |
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