Claudia Oliveira - Academia.edu (original) (raw)

Uploads

Papers by Claudia Oliveira

Research paper thumbnail of Spatial distribution of human and canine visceral leishmaniasis in Belo Horizonte, Minas Gerais State, Brasil, 1994-1997

Cadernos De Saude Publica, 2001

Research paper thumbnail of Diffusion and prediction of Leishmaniasis in a large metropolitan area in Brazil with a Bayesian space-time model

Statistics in Medicine, 2001

We present results from an analysis of human visceral Leishmaniasis cases based on public health ... more We present results from an analysis of human visceral Leishmaniasis cases based on public health records of Belo Horizonte, Brazil, from 1994 to 1997. The main emphasis in this study is on the development of a spatial statistical model to map and project the rates of visceral Leishmaniasis in Belo Horizonte. The model allows for space–time interaction and it is based on a hierarchical Bayesian approach. We assume that the underlying rates evolve in time according to a polynomial trend specific to each small area in the region. The parameters of these polynomials receive a spatial distribution in the form of an autonormal distribution. While the raw rates are extremely noisy and inadequate to support decisions, the resulting smoothed rates estimates are considerably less affected by small area issues and provide very clear directions to implement public health actions. Copyright © 2001 John Wiley & Sons, Ltd.

Research paper thumbnail of Spatial distribution of human and canine visceral leishmaniasis in Belo Horizonte, Minas Gerais State, Brasil, 1994-1997

Cadernos De Saude Publica, 2001

In this paper, we present spatial analysis of the association between all incidents cases of huma... more In this paper, we present spatial analysis of the association between all incidents cases of human Visceral Leishmaniasis and seropositive dogs, from 1994 to 1997 in Belo Horizonte, a large Brazilian city. We geocoded 158 human cases and 11,048 seropositive dogs and compared canine prevalence rates with Human Bayesian Incidence rates in the same areas. We also used Knox's test to evaluate the hypothesis of space-time clustering of human cases in the period. Additionally, we used Kernel's maps for seropositive dogs distribution and located the human cases in the resulting smooth maps. We concluded that human and dog rates are correlated. Also, the Visceral Leishmaniasis in Belo Horizonte spread quickly, but apart from the rates' magnitude, it has kept the same spatial pattern through time. We believe it is possible to use this technique to choose areas to implement control measures against Visceral Leishmaniasis in a more efficient way. Resumo Neste artigo, apresentamos uma análise espacial da associação entre todos os casos incidentes de leishmaniose visceral e em cães soropositivos ocorridos em Belo Horizonte no período de 1994 a 1997. Geocodificamos 158 casos humanos e 11.048 cães positivos, comparamos as taxas de prevalência canina por área e as taxas Bayesianas de incidência da doença humana nas mesmas áreas. Usamos o teste de Knox para testar a hipótese de cluster espaço temporal entre os casos humanos no período examinado. Adicionalmente, construímos Mapas de Kernel para cães soropositivos e sobrepusemos os casos humanos em quatro áreas. Os resultados apontam para correlação entre casos humanos e caninos. Além disso, a leishmaniose visceral espalhou-se rapidamente em Belo Horizonte, embora tenha mantido o mesmo padrão durante os anos analisados. Acreditamos ser possível o uso das técnicas empregadas para priorizar áreas onde as medidas de controle devem ser implementadas.

Research paper thumbnail of Diffusion and prediction of Leishmaniasis in a large metropolitan area in Brazil with a Bayesian space-time model

Statistics in Medicine, 2001

We present results from an analysis of human visceral Leishmaniasis cases based on public health ... more We present results from an analysis of human visceral Leishmaniasis cases based on public health records of Belo Horizonte, Brazil, from 1994 to 1997. The main emphasis in this study is on the development of a spatial statistical model to map and project the rates of visceral Leishmaniasis in Belo Horizonte. The model allows for space–time interaction and it is based on a hierarchical Bayesian approach. We assume that the underlying rates evolve in time according to a polynomial trend specific to each small area in the region. The parameters of these polynomials receive a spatial distribution in the form of an autonormal distribution. While the raw rates are extremely noisy and inadequate to support decisions, the resulting smoothed rates estimates are considerably less affected by small area issues and provide very clear directions to implement public health actions. Copyright © 2001 John Wiley & Sons, Ltd.

Research paper thumbnail of Terceira Edição

APOIO Esta publicação, uma iniciativa do Idec com o apoio da Fundação Rockfeller, é destinada a i... more APOIO Esta publicação, uma iniciativa do Idec com o apoio da Fundação Rockfeller, é destinada a informar e orientar os cidadãos sobre seus direitos às ações e aos serviços de saúde. Esta terceira edição foi realizada com apoio do Fundo de Defesa dos Direitos Difusos, do Ministério da Justiça. A sua distribuição é gratuita. Autorizamos a reprodução, desde que previamente solicitada ao Idec.

Research paper thumbnail of Spatial distribution of human and canine visceral leishmaniasis in Belo Horizonte, Minas Gerais State, Brasil, 1994-1997

Cadernos De Saude Publica, 2001

Research paper thumbnail of Diffusion and prediction of Leishmaniasis in a large metropolitan area in Brazil with a Bayesian space-time model

Statistics in Medicine, 2001

We present results from an analysis of human visceral Leishmaniasis cases based on public health ... more We present results from an analysis of human visceral Leishmaniasis cases based on public health records of Belo Horizonte, Brazil, from 1994 to 1997. The main emphasis in this study is on the development of a spatial statistical model to map and project the rates of visceral Leishmaniasis in Belo Horizonte. The model allows for space–time interaction and it is based on a hierarchical Bayesian approach. We assume that the underlying rates evolve in time according to a polynomial trend specific to each small area in the region. The parameters of these polynomials receive a spatial distribution in the form of an autonormal distribution. While the raw rates are extremely noisy and inadequate to support decisions, the resulting smoothed rates estimates are considerably less affected by small area issues and provide very clear directions to implement public health actions. Copyright © 2001 John Wiley & Sons, Ltd.

Research paper thumbnail of Spatial distribution of human and canine visceral leishmaniasis in Belo Horizonte, Minas Gerais State, Brasil, 1994-1997

Cadernos De Saude Publica, 2001

In this paper, we present spatial analysis of the association between all incidents cases of huma... more In this paper, we present spatial analysis of the association between all incidents cases of human Visceral Leishmaniasis and seropositive dogs, from 1994 to 1997 in Belo Horizonte, a large Brazilian city. We geocoded 158 human cases and 11,048 seropositive dogs and compared canine prevalence rates with Human Bayesian Incidence rates in the same areas. We also used Knox's test to evaluate the hypothesis of space-time clustering of human cases in the period. Additionally, we used Kernel's maps for seropositive dogs distribution and located the human cases in the resulting smooth maps. We concluded that human and dog rates are correlated. Also, the Visceral Leishmaniasis in Belo Horizonte spread quickly, but apart from the rates' magnitude, it has kept the same spatial pattern through time. We believe it is possible to use this technique to choose areas to implement control measures against Visceral Leishmaniasis in a more efficient way. Resumo Neste artigo, apresentamos uma análise espacial da associação entre todos os casos incidentes de leishmaniose visceral e em cães soropositivos ocorridos em Belo Horizonte no período de 1994 a 1997. Geocodificamos 158 casos humanos e 11.048 cães positivos, comparamos as taxas de prevalência canina por área e as taxas Bayesianas de incidência da doença humana nas mesmas áreas. Usamos o teste de Knox para testar a hipótese de cluster espaço temporal entre os casos humanos no período examinado. Adicionalmente, construímos Mapas de Kernel para cães soropositivos e sobrepusemos os casos humanos em quatro áreas. Os resultados apontam para correlação entre casos humanos e caninos. Além disso, a leishmaniose visceral espalhou-se rapidamente em Belo Horizonte, embora tenha mantido o mesmo padrão durante os anos analisados. Acreditamos ser possível o uso das técnicas empregadas para priorizar áreas onde as medidas de controle devem ser implementadas.

Research paper thumbnail of Diffusion and prediction of Leishmaniasis in a large metropolitan area in Brazil with a Bayesian space-time model

Statistics in Medicine, 2001

We present results from an analysis of human visceral Leishmaniasis cases based on public health ... more We present results from an analysis of human visceral Leishmaniasis cases based on public health records of Belo Horizonte, Brazil, from 1994 to 1997. The main emphasis in this study is on the development of a spatial statistical model to map and project the rates of visceral Leishmaniasis in Belo Horizonte. The model allows for space–time interaction and it is based on a hierarchical Bayesian approach. We assume that the underlying rates evolve in time according to a polynomial trend specific to each small area in the region. The parameters of these polynomials receive a spatial distribution in the form of an autonormal distribution. While the raw rates are extremely noisy and inadequate to support decisions, the resulting smoothed rates estimates are considerably less affected by small area issues and provide very clear directions to implement public health actions. Copyright © 2001 John Wiley & Sons, Ltd.

Research paper thumbnail of Terceira Edição

APOIO Esta publicação, uma iniciativa do Idec com o apoio da Fundação Rockfeller, é destinada a i... more APOIO Esta publicação, uma iniciativa do Idec com o apoio da Fundação Rockfeller, é destinada a informar e orientar os cidadãos sobre seus direitos às ações e aos serviços de saúde. Esta terceira edição foi realizada com apoio do Fundo de Defesa dos Direitos Difusos, do Ministério da Justiça. A sua distribuição é gratuita. Autorizamos a reprodução, desde que previamente solicitada ao Idec.