Two-level spatially structured models in spatio-temporal disease mapping

This work focuses on extending some classical spatio-temporal models in disease mapping. The objective is to present a family of flexible models to analyze real data naturally organized in two different levels of spatial aggregation like municipalities within health areas or provinces, or counties w...

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Bibliographic Details
Published in:Statistical methods in medical research 2016-08, Vol.25 (4), p.1080-1100
Main Authors: Ugarte, María Dolores, Adin, Aritz, Goicoa, Tomás
Format: Article
Language:English
Subjects:
Agglomeration
Aggregation
Approximation
Brain
Brain cancer
Brain Neoplasms - mortality
Computer simulation
Criteria
Disease
Epidemiology
Fitting
Humans
Mapping
Mortality
Municipalities
Provinces
Random effects
Simulation
Spain - epidemiology
Spatial aggregation
Spatio-Temporal Analysis
Statistical methods
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Summary:This work focuses on extending some classical spatio-temporal models in disease mapping. The objective is to present a family of flexible models to analyze real data naturally organized in two different levels of spatial aggregation like municipalities within health areas or provinces, or counties within states. Model fitting and inference will be carried out using integrated nested Laplace approximations. The performance of the new models compared to models including a single spatial random effect is assessed by simulation. Results show good behavior of the proposed two-level spatially structured models in terms of several criteria. Brain cancer mortality data in the municipalities of two regions in Spain will be analyzed using the new model proposals. It will be shown that a model with two-level spatial random effects overcomes the usual single-level models.
ISSN:0962-2802
1477-0334
DOI:10.1177/0962280216660423