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首页> 外文期刊>International Journal of Health Geographics >The modifiable areal unit problem (MAUP) in the relationship between exposure to NO2 and respiratory health
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The modifiable areal unit problem (MAUP) in the relationship between exposure to NO2 and respiratory health

机译：NO 2 暴露与呼吸健康之间的关系中的可修正面积单位问题（MAUP）

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Background Many Canadian population health studies, including those focusing on the relationship between exposure to air pollution and health, have operationalized neighbourhoods at the census tract scale. At the same time, the conceptualization of place at the local scale is one of the weakest theoretical aspects in health geography. The modifiable areal unit problem (MAUP) raises issues when census tracts are used as neighbourhood proxies, and no other alternate spatial structure is used for sensitivity analysis. In the literature, conclusions on the relationship between NO2 and health outcomes are divided, and this situation may in part be due to the selection of an inappropriate spatial structure for analysis. Here, we undertake an analysis of NO2 and respiratory health in Ottawa, Canada using three different spatial structures in order to elucidate the effects that the spatial unit of analysis can have on analytical results. Results Using three different spatial structures to examine and quantify the relationship between NO2 and respiratory morbidity, we offer three main conclusions: 1) exploratory spatial analytical methods can serve as an indication of the potential effect of the MAUP; 2) OLS regression results differ significantly using different spatial representations, and this could be a contributing factor to the lack of consensus in studies that focus on the relation between NO2 and respiratory health at the area-level; and 3) the use of three spatial representations confirms no measured effect of NO2 exposure on respiratory health in Ottawa. Conclusions Area units used in population health studies should be delineated so as to represent the a priori scale of the expected scale interaction between neighbourhood processes and health. A thorough understanding of the role of the MAUP in the study of the relationship between NO2 and respiratory health is necessary for research into disease pathways based on statistical models, and for decision-makers to assess the scale at which interventions will have maximum benefit. In general, more research on the role of spatial representation in health studies is needed.
机译：背景技术许多加拿大人口健康研究，包括那些关注空气污染暴露与健康之间关系的研究，已经在人口普查范围内使社区得以运作。同时，地方规模的概念化是健康地理学中最薄弱的理论方面之一。当将人口普查区用作邻域代理并且没有其他替代空间结构用于敏感性分析时，可修改的面积单位问题（MAUP）会引起问题。在文献中，关于NO2与健康结果之间关系的结论存在分歧，这种情况可能部分是由于选择了不合适的空间结构进行分析所致。在这里，我们使用三种不同的空间结构对加拿大渥太华的NO2和呼吸系统健康进行了分析，以阐明空间分析单元可能对分析结果产生的影响。结果使用三种不同的空间结构来检查和量化NO2与呼吸道疾病之间的关系，我们得出三个主要结论：1）探索性空间分析方法可作为MAUP潜在作用的指标; 2）使用不同的空间表示法，OLS回归结果存在显着差异，这可能是导致在区域层面关注NO2与呼吸健康之间关系的研究缺乏共识的一个原因。 3）使用三个空间表示法确认了在渥太华，没有测量到NO2暴露对呼吸健康的影响。结论应当划定人口健康研究中使用的面积单位，以代表邻里过程与健康之间预期尺度相互作用的先验尺度。必须彻底了解MAUP在研究NO2与呼吸系统健康之间的关系中的作用，这对于基于统计模型的疾病路径研究以及决策者评估干预措施将获得最大收益的规模非常必要。通常，需要对空间表示在健康研究中的作用进行更多研究。

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