Study on the spatial distribution of AIDS based on geographic information system in Jiangsu province
10.3760/cma.j.issn.0254-6450.2011.01.011
- VernacularTitle:应用地理信息系统技术对江苏省艾滋病疫情的空间分析
- Author:
Zhi-Hang PENG
1
;
Hai-Tao YANG
;
Yue-Jia CHENG
;
Lu WANG
;
Rong-Bin YU
;
Xi-Ping HUAN
;
Hong-Bing SHEN
;
Feng CHEN
;
Ning WANG
Author Information
1. 南京医科大学
- Keywords:
AIDS;
Geographic information system;
Spatial autocorrelation analysis;
Trend surface analysis
- From:
Chinese Journal of Epidemiology
2011;32(1):42-46
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the spatial distribution of AIDS in every city of Jiangsu province, trying to describe the geographic characteristics of AIDS and to develop a prediction model.Methods Numbers of patients in Jiangsu province were collected, to establish the database for the geographic information system, then setting up a 'risk map' of the disease. Spatial, autocorrelation.Linear spatial analyses were used to study the patients' numbers. Results (1)Results from the autocorrelation analysis showed that the distribution of AIDS was clustered at some places and was at random on the whole. The results also indicated that the distribution of AIDS in Nanjing was of negative correlation, while that in Suzhou and Wuxi were of positive correlation but in Tongshan, Wujiang, Pukou, Nanjing, Lishui, Wuxi and Suzhou showed seven locations of clusters with disease was more severe in the southern than in the northern parts of Jiangsu province. (3)Ordinary Least Squares method was finally used in the linear spatial regression and the results were: t=-1.045 103 (P=0.299 904); t=-1.443 668 (P=0.153 714) respectively. Conclusion According to the feature spatial distribution of the disease, effective measures should be taken to prevent and to keep the prevalence of AIDS under control.
