摘要
目的了解某市艾滋病疫情的地理分布特征。方法以多元回归分析理论为基础,构建趋势面回归数学模型,将不同区县的经纬度坐标及艾滋病感染数据代入模型,并根据模型方程计算结果,通过ArcGIS软件,绘制趋势面分析图。结果某市艾滋病感染率趋势面回归数学模型有统计学意义(P<0.05),其拟合优度为53.18%。存在异常残差值的地区,应作为重点研究对象,探讨这些地区可能存在的某种保护因素或危险因素。结论该方法可用于分析某市艾滋病疫情的地理分布系统变异和局部变异情况,可为当地艾滋病的疫情防控提供一些线索。
Objective To study the geographical distribution of the HIV/AIDS epidemic in C city .Methods Based on the theory of multiple regression analysis ,trend surface regression mathematical model was constructed .The latitude and longitude coordinates of different districts and data of HIV/AIDS were collected in the model and the results by ArcGIS software were got ,the trend sur-face analysis chart was drawed at last .Results HIV/AIDS infection rates trend surface regression mathematical model of C city was statistically significant difference（P〈 0.05） ,its goodness-of-fit was 53 .18% .Regions exsisted abnormal residual value and should be the paid attention to explore protective or risk factors in these regions .Conclusion The method can be used in the analy-sis of C city HIV/AIDS epidemic systematic variation in the geographic distribution and local district ,and provide some clues for the local epidemic prevention and controlling of HIV/AIDS .
出处
《重庆医学》
CAS
CSCD
北大核心
2014年第30期4050-4052,共3页
Chongqing medicine
基金
国家自然科学基金青年基金资助项目(81001295)
关键词
获得性免疫缺陷综合征
地理位置
回归分析
趋势面分析
acquired immunodeficiency syndrome
geographical locations
regression analysis
trend surface analysis
