【摘要】 [目的 ]探讨地理抽样单元面积大小对疾病空间分布概率模型及其量化指标的影响。 [方法 ]采用模型模拟和指标模拟方法 ,观察地理抽样单元面积由小到大变化时 ,概率模型类型及其参数和量化统计指标是否变化。 [结果 ]随着地理抽样单元面积的变化 ,概率模型类型及其参数和量化统计指标也随之变化。 [结论 ]疾病空间分布的概率模型及其量化统计指标是空间尺度的函数 ,具有空间尺度依赖性 ,应用时必须根据研究目的事先确定空间尺度 ;疾病空间分布的概率模型及其量化统计指标存在空间尺度依赖性的缺陷 ,应建立不依赖空间尺度的疾病空间相关 自相关模型。更多还原

【Abstract】 To explore impact of dimension of sampling geographic cell to statistical indicators on spatial distribution of disease Modeling statistical indicators on spatial distribution of disease to observe the changes of them followed by the changes of dimension of sampling geographic cell The parameters of statistical indicators on spatial distribution of disease change followed by the changes of dimension of sampling geographic cell [Conclusions]Statistical indicators on spatial distribution of disease are the functions of spatial criterion, before using them, we must confirm spatial criterion; On the other hand, The dependence of spatial criterion is a defect to statistical indicators on spatial distribution of disease, the spatial correlation or auto-correlation models should be built to eliminate spatial criterion更多还原