Temporal, spatial and spatiotemporal analysis of the occurrence of visceral leishmaniasis in humans in the City of Birigui, State of São Paulo, from 1999 to 2012

Autor(es)

Vieira, Carolina Portugal ^[1] ; Oliveira, Agda Maria ^[2] ; Colebrusco Rodas, Lilian Aparecida ^{[3, 4]} ; Dibo, Margareth Regina ^[5] ; Guirado, Marluci Monteiro ^[5] ; Neto, Francisco Chiaravalloti ^[6]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Enfermagem, Curso Grad Enfermagem, BR-01246904 Sao Paulo - Brazil

^[2] Univ Sao Paulo, FSP, Programa Posgrad Saude Publ, BR-01246904 Sao Paulo - Brazil

^[3] Univ Estadual Paulista, Programa Posgrad Ciencia Anim, Aracatuba, SP - Brazil

^[4] Secretaria Estado Saude Sao Paulo, Aracatuba, SP - Brazil

^[5] Secretaria Estado Saude Sao Paulo, Lab Vetores Sao Jose de Rio Preto, Sao Jose Do Rio Preto, SP - Brazil

^[6] Univ Sao Paulo, FSP, Dept Epidemiol, BR-01246904 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Revista da Sociedade Brasileira de Medicina Tropical; v. 47, n. 3, p. 350-358, MAY-JUN 2014.
• Citações Web of Science: 11

Resumo

Introduction In 1999, Birigui and Araçatuba were the first municipalities in the State of São Paulo to present autochthonous cases of visceral leishmaniasis in humans (VLH). The aim of this study was to describe the temporal, spatial and spatiotemporal behaviors of VLH in Birigui. Methods Secondary data were obtained from the Notifiable Diseases Information System from 1999 to 2012. The incidence, mortality and case fatality rates by sex and age were calculated. The cases of VLH were geocoded and grouped according to census tracts. Local empirical Bayesian incidence rates were calculated. The existence of spatial and spatiotemporal clusters was investigated using SaTScan software. Results There were 156 confirmed cases of autochthonous VLH. The incidence rate was higher in the 0-4-year-old children, and the mortality and case fatality rates were higher in people aged 60 years and older. The peaks of incidence occurred in 2006 and 2011. The Bayesian rates identified the presence of VLH in all of the census tracts in the municipality; however, spatial and spatiotemporal clusters were found in the central area of the municipality. Conclusions Birigui, located in the Araçatuba region, has recently experienced increasing numbers of VLH cases; this increase is contrary to the behavior observed over the entire region, which has shown a decreasing trend in the number of VLH cases. The observations that the highest incidence is in children 0-4 years old and the highest mortality is in people 60 years and older are in agreement with the expected patterns of VLH. (AU)

• Processo FAPESP: 10/20279-1 - Análise espacial da ocorrência de leishmaniose visceral americana no estado de São Paulo, Brasil
• Beneficiário: Francisco Chiaravalloti Neto
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/17564-1 - Análise espacial da ocorrência de Leishmaniose Visceral americana na cidade de Birigui, São Paulo - Brasil
• Beneficiário: Carolina Portugal Vieira
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica