Spatial Cluster Detection for Censored Outcome Data
نویسندگان
چکیده
منابع مشابه
Spatial cluster detection for censored outcome data.
While numerous methods have been proposed to test for spatial cluster detection, in particular for discrete outcome data (e.g., disease incidence), few have been available for continuous data that are subject to censoring. This article provides an extension of the spatial scan statistic (Kulldorff, 1997, Communications in Statistics 26, 1481-1496) for censored outcome data and further proposes ...
متن کاملNotes on Permutation Tests for Spatial Cluster Detection with Censored Outcome Data
This short note evaluates the assumptions required for a permutation test to approximate the null distribution of the spatial scan statistic for censored outcomes proposed in Cook, Gold, and Li (2007, Biometrics 63, 540–549). In particular, we study the exchangeability conditions required for such a test under survival models. A simulation study is further performed to assess the impact on the ...
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An important issue in survival data analysis is the identification of risk factors. Some of these factors are identifiable and explainable by presence of some covariates in the Cox proportional hazard model, while the others are unidentifiable or even immeasurable. Spatial correlation of censored survival data is one of these sources that are rarely considered in the literatures. In this paper,...
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SUMMARY Cook, Gold, and Li (2007, Biometrics 63, 540-549) extended the Kulldorff (1997, Communications in Statistics 26, 1481-1496) scan statistic for spatial cluster detection to survival-type observations. Their approach was based on the score statistic and they proposed a permutation distribution for the maximum of score tests. The score statistic makes it possible to apply the scan statisti...
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Cluster discovery techniques include a wide spectrum of exploratory approaches for identifying locations exhibiting elevated levels of disease, risk or danger. In fact, exploratory spatial data analysis and the development and application of spatial cluster detection techniques have grown significantly over the past twenty years (Murray and Estivill-Castro, 1998; Anselin, 1998; Murray, 2010; Wu...
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ژورنال
عنوان ژورنال: Biometrics
سال: 2007
ISSN: 0006-341X
DOI: 10.1111/j.1541-0420.2006.00714.x