居民死亡率的空间危险因素生态学关联分析

Ecological Correlates of the Spatial Risk in Mortality

目的探索广西金城江区成年死亡的空间危险因素。方法利用地理信息系统技术把研究现场划分为大小为0.25km2的正方形的邻区。以邻区为单位进行数据汇总统计,使用Poisson回归方法确定邻区成年死亡率的相关生态学影响因素。结果2002～2004年研究现场年均人口数为124 204人,成年男性死亡率为女性的2倍;成人死亡的主要原因为损伤、中毒;贫困地区死亡率明显高于富裕地区。结论空间分析技术对影响死亡率的空间危险因素的探讨结果可为今后合理配置卫生资源,消除不同人群不同死亡率的差别提供有益的线索。

Objective To explore the spatial risks of adult death. Methods GIS was applied to divide study area into neighborhoods which was defined using identical rectangular cells of size 0. 25km^2. Poisson regression was fitted to the neighborhood level data to identify ecological influences on adult mortality. Results An average of 124 204 people lived in the area during the study period （2002 - 2004）. Adult male mortality was more than two-fold higher than adult female mortality. Adults were likely to die of injury, poisoning. Significantly more deaths were observed in poor areas than in areas with higher incomes. Conclusion This study provided valuable information on rationalization of health resource and eliminate the disparity in mortality rates between rural and urban areas in the study area.