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Type: Artigo
Title: Spatial Analysis Of Counting Data With Excess Zeros Applied To The Study Of Dengue Incidence In Campinas, Sao Paulo State, Brazil
Author: Costa
Jose Vilton; de Arruda Silveira
Liciana Vaz; Donalisio
Maria Rita
Abstract: Dengue incidence occurs predominantly within city limits. Identifying spatial distribution of the disease at the local level helps formulate strategies to control and prevent the disease. Spatial analysis of counting data for small areas commonly violates the assumptions of traditional Poisson models due to the excessive amount of zeros. This study compared the performance of four counting models used in mapping diseases: Poisson, negative binomial, zero-inflated Poisson, and zero-inflated negative binomial. The methods were compared in a simulation study. The models analyzed in the simulation were applied to a spatial ecological study of dengue data aggregated by census tracts in the city of Campinas, Sao Paulo State, Brazil, 2007. Spatial analysis was conducted with Bayesian hierarchical models. The zero-inflated Poisson model showed the best performance for estimating relative risk of dengue incidence in the census tracts.
Subject: Spatial Analysis
Communicable Disease Control
Editor: Cadernos Saúde Publica
Rio de Janeiro
Rights: aberto
Identifier DOI: 10.1590/0102-311X00036915
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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