Optimizing the maximum reported cluster size for the multinomial-based spatial scan statistic.

IF 3 2区 医学 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Jisu Moon, Minseok Kim, Inkyung Jung
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引用次数: 0

Abstract

Background: Correctly identifying spatial disease cluster is a fundamental concern in public health and epidemiology. The spatial scan statistic is widely used for detecting spatial disease clusters in spatial epidemiology and disease surveillance. Many studies default to a maximum reported cluster size (MRCS) set at 50% of the total population when searching for spatial clusters. However, this default setting can sometimes report clusters larger than true clusters, which include less relevant regions. For the Poisson, Bernoulli, ordinal, normal, and exponential models, a Gini coefficient has been developed to optimize the MRCS. Yet, no measure is available for the multinomial model.

Results: We propose two versions of a spatial cluster information criterion (SCIC) for selecting the optimal MRCS value for the multinomial-based spatial scan statistic. Our simulation study suggests that SCIC improves the accuracy of reporting true clusters. Analysis of the Korea Community Health Survey (KCHS) data further demonstrates that our method identifies more meaningful small clusters compared to the default setting.

Conclusions: Our method focuses on improving the performance of the spatial scan statistic by optimizing the MRCS value when using the multinomial model. In public health and disease surveillance, the proposed method can be used to provide more accurate and meaningful spatial cluster detection for multinomial data, such as disease subtypes.

优化基于多项式的空间扫描统计的最大报告聚类大小。
背景:正确识别空间疾病集群是公共卫生和流行病学的一个基本问题。空间扫描统计在空间流行病学和疾病监测中被广泛用于检测空间疾病集群。在搜索空间聚类时,许多研究默认将最大报告聚类大小(MRCS)设置为总人口的50%。但是,此默认设置有时可以报告比真实集群更大的集群,这些集群包括不太相关的区域。对于泊松、伯努利、序数、正态和指数模型,已经开发了基尼系数来优化MRCS。然而,多项式模型没有可用的度量。结果:我们提出了两种版本的空间聚类信息准则(SCIC),用于为基于多项式的空间扫描统计选择最佳MRCS值。我们的模拟研究表明,SCIC提高了报告真实集群的准确性。对韩国社区健康调查(KCHS)数据的分析进一步表明,与默认设置相比,我们的方法确定了更有意义的小集群。结论:当使用多项式模型时,我们的方法侧重于通过优化MRCS值来提高空间扫描统计的性能。在公共卫生和疾病监测中,所提出的方法可用于为多项数据(如疾病亚型)提供更准确和有意义的空间聚类检测。
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来源期刊
International Journal of Health Geographics
International Journal of Health Geographics PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH -
CiteScore
10.20
自引率
2.00%
发文量
17
审稿时长
12 weeks
期刊介绍: A leader among the field, International Journal of Health Geographics is an interdisciplinary, open access journal publishing internationally significant studies of geospatial information systems and science applications in health and healthcare. With an exceptional author satisfaction rate and a quick time to first decision, the journal caters to readers across an array of healthcare disciplines globally. International Journal of Health Geographics welcomes novel studies in the health and healthcare context spanning from spatial data infrastructure and Web geospatial interoperability research, to research into real-time Geographic Information Systems (GIS)-enabled surveillance services, remote sensing applications, spatial epidemiology, spatio-temporal statistics, internet GIS and cyberspace mapping, participatory GIS and citizen sensing, geospatial big data, healthy smart cities and regions, and geospatial Internet of Things and blockchain.
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