Spatial analysis for stratification of priority malaria control areas, Mato Grosso State, Brazil

Atanaka-Santos, Marina; Souza-Santos, Reinaldo; Czeresnia, Dina

doi:10.1590/s0102-311x2007000500012

Cited by 18 publications

(22 citation statements)

References 6 publications

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“…This increased participation of males and working age individuals expresses the relocation of labor in the search for employment in areas of greatest risk of transmission, where activities related to agriculture usually prevail, like livestock, hunting/fishing, mining and agricultural exploitation 4,7,14,24,28,31 .…”

Section: Discussionmentioning

confidence: 99%

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Epidemiological profile of malaria in the state of Tocantins, Brazil, from 2003 to 2008

Parise¹,

Araújo

Castro

et al. 2011

Rev. Inst. Med. trop. S. Paulo

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SUMMARYThis study describes the epidemiological profile of malaria in the State of Tocantins, in the period [2003][2004][2005][2006][2007][2008], investigates the association between the frequency of malaria and population growth, classifies the cases by 'autochthonous' and 'imported', reports the indices of the disease and analyses the distribution of the cases by Plasmodium species, age and gender. The retrospective study was based on secondary data, stored in SIVEP-malaria and analyzed using the software Epi-Info 3.5.1. and Bioestat 5.0. 19,004 samples were investigated for malaria, 19% of them were positive, 73.32% with Plasmodium vivax, 21.80% with Plasmodium falciparum, 4.79% with mixed infections and only 0.08% with Plasmodium malariae. Male individuals accounted for 76.95% and predominated in all years and age groups, especially in the 15 to 49 years old group. From the overall cases, 34.27% were autochthonous and 65.73% were imported (χ 2 = 356.8, p = 0.0001). The frequency of malaria decreased significantly during the entire series (rp = 0.96, p = 0.002) and the number of municipalities with autochthonous transmission also diminished. It was found that malaria is predominantly imported, related to land activities, which confirms the need for effective measures to maintain vigilance throughout the state and enhance educational activities in order to guide the population towards early treatment-seeking.

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Section: Discussionmentioning

confidence: 99%

“…The average API for the period 2003-2008, calculated for the age group, was based on the sum of annual APIs from each age group divided by six (number of years studied), similar to the procedure used by ATANAKA-SANTOS et al 4 and CHAVES & RODRIGUES 10 .…”

Section: Methodsmentioning

confidence: 99%

Epidemiological profile of malaria in the state of Tocantins, Brazil, from 2003 to 2008

Parise¹,

Araújo

Castro

et al. 2011

Rev. Inst. Med. trop. S. Paulo

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“…Esta variação foi menor nos municípios da área de risco intermediário Q3. Nos municípios Q3 foi observada média de famílias assentadas apenas nos P1 (78,2) e P3 (197,4). Já nos municípios Q4, média de famílias assentadas foi observada no P1 (204,7), P2 (172,6) e P3 (206,6).…”

Section: áRea De Menor Risco De Transmissão -Q2 (-/-)unclassified

Análise espacial e determinação de áreas para o controle da malária no Estado de Rondônia

Rodrigues

Escobar

Souza-Santos

2008

Rev. Soc. Bras. Med. Trop.

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RESUMOEste trabalho discute o uso de análise espacial para confecção de mapas de risco para malária no Estado de Rondônia, entre 1994 e 2005. Para análise do padrão espacial, foram utilizados os índices de Moran global e local. Com base nos valores do Índice Parasitário Anual, pode-se afirmar que os municípios que constituem a área de maior risco são os de urbanização mais recente, caracterizados por: maior crescimento populacional, maior número de famílias assentadas e elevado percentual de área desmatada. O Moran Map mostrou que os agregados de municípios com maior risco para malária sofreram processo de espalhamento para a região noroeste e nordeste do estado. Já nos municípios considerados como de menor risco, o processo se deu em direção ao sudeste. As técnicas utilizadas em nosso estudo merecem ser comparadas com a atual metodologia utilizada pela Secretaria de Vigilância Sanitária na determinação de áreas de risco e repasse financeiro para controle da malária.Palavras-chaves: Epidemiologia. Geoprocessamento. Análise espacial. Malária.Malária. ABSTRACTThis paper discusses the use of spatial analysis for mapping the risk of malaria in the State of Rondônia between 1994 and 2005. Moran's overall and local indices were used for spatial pattern analysis. Based on the Annual Parasitic Index, it can be stated that the municipalities forming the area at greater risk are those in which the urbanization process is more recent. They are characterized by higher population growth, greater number of settled families and high percentages of deforested area. The Moran map showed that the aggregated areas of municipalities at high risk of malaria have undergone a process of spreading into the northwestern and northeastern regions of the State. Among the municipalities considered to be at low risk, this process has taken place towards the southeast. The techniques used in this study deserve to be compared with the current methodology used by the Health Surveillance Department for determining areas at risk and financial transfers for malaria control..

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“…A média da IPA, no período 2003-2008, foi baseada na soma das IPAs de cada ano, dividido por seis (número de anos em estudo), semelhante aos procedimentos utilizados por Atanaka-Santos cols 15 e Chaves e Rodrigues 16 .…”

Section: Métodos Resultadosunclassified

Análise espacial e determinação de áreas prioritárias para o controle da malária, no Estado no Tocantins, 2003-2008

Parise

Araújo

Pinheiro

2011

Rev. Soc. Bras. Med. Trop.

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RESUMO ABSTRACT Introduction:In Tocantins, the behavior of malaria differs between microregions, with predominance of imported cases. This study describes a spatial analysis on malaria in the state covering 2003 to 2008, which sought to identify the incidence of autochthonous and imported cases, and the origin of the latter, in the microregions. Methods: This was a retrospective study using secondary data. The data source was the epidemiological surveillance information system for malaria (SIVEP-Malária), and the data were analyzed using the Epi Info version 3.5.1 and Bioestat version 5.0 statistical software. Results: It was found that malaria was not homogeneously distributed in all municipalities. The area of highest priority comprised municipalities located in microregions in the west of the state, at the border of Pará, which also had the highest number of autochthonous cases. The association between the autochthonous and imported cases and the Plasmodium species showed a statistically significant difference (G = 54.25; p < 0.0001). Among the eight microregions, Miracema do Tocantins, Araguaína and Bico do Papagaio accounted for 75.8% of the cases and, among these, eleven municipalities stood out. Regarding provenance, the State of Pará showed widespread distribution with 85.5% of the total, followed by French Guiana with 7.4%. Conclusions: These results demonstrated the predominance of imported cases and the difference between municipalities and microregions, and showed the influence of neighboring states in determining the areas of greatest risk. These data are important, since they contribute towards guiding and directing public policies regarding this disease in Tocantins.

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Spatial analysis for stratification of priority malaria control areas, Mato Grosso State, Brazil

Cited by 18 publications

References 6 publications

Epidemiological profile of malaria in the state of Tocantins, Brazil, from 2003 to 2008

Epidemiological profile of malaria in the state of Tocantins, Brazil, from 2003 to 2008

Análise espacial e determinação de áreas para o controle da malária no Estado de Rondônia

Análise espacial e determinação de áreas prioritárias para o controle da malária, no Estado no Tocantins, 2003-2008

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