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Socioepidemiological screening of serologically ineligible blood donors due to Chagas disease for the definition of inconclusive cases
Ferreira-Silva, Márcia M; Pereira, Gilberto A; Lages-Silva, Eliane; Moraes-Souza, Helio.
  • Ferreira-Silva, Márcia M; s.af
  • Pereira, Gilberto A; s.af
  • Lages-Silva, Eliane; s.af
  • Moraes-Souza, Helio; s.af
Mem. Inst. Oswaldo Cruz ; 105(6): 800-805, Sept. 2010. ilus
Artigo em Inglês | LILACS | ID: lil-560666
ABSTRACT
Epidemiological screening combined with serological tests has become an important tool at blood banks for the characterization of donors with or without Trypanosoma cruzi infection. Thus, the objective of the present study was to describe the sociodemographic and epidemiological characteristics of blood donors with non-negative serology for T. cruzito determine possible risk factors associated with serological ineligibility. Sociodemographic and epidemiological data were collected by analysis of patient histories and interviews. The data were analyzed descriptively using absolute and relative frequencies and odds ratio (OR) evaluation. The frequency of serological ineligibility was 0.28 percent, with a predominance of inconclusive reactions (52 percent) and seropositivity among first-time donors (OR = 607), donors older than 30 years (OR = 3.7), females (OR = 1.9), donors from risk areas (OR = 4) and subjects living in rural areas (OR = 1.7). The risk of seropositivity was higher among donors who had contact with the triatomine vector (OR = 11.7) and those with a family history of Chagas disease (OR = 4.8). The results demonstrate the value of detailed clinical-epidemiological screening as an auxiliary tool for serological definition that, together with more specific and more sensitive laboratory methods, will guarantee a higher efficacy in the selection of donors at blood centres.
Assuntos

Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Trypanosoma cruzi / Doadores de Sangue / Anticorpos Antiprotozoários / Doença de Chagas Tipo de estudo: Estudo diagnóstico / Estudo de etiologia / Fatores de risco / Estudo de rastreamento Limite: Adulto / Feminino / Humanos / Masculino País/Região como assunto: América do Sul / Brasil Idioma: Inglês Revista: Mem. Inst. Oswaldo Cruz Assunto da revista: Medicina Tropical / Parasitologia Ano de publicação: 2010 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Trypanosoma cruzi / Doadores de Sangue / Anticorpos Antiprotozoários / Doença de Chagas Tipo de estudo: Estudo diagnóstico / Estudo de etiologia / Fatores de risco / Estudo de rastreamento Limite: Adulto / Feminino / Humanos / Masculino País/Região como assunto: América do Sul / Brasil Idioma: Inglês Revista: Mem. Inst. Oswaldo Cruz Assunto da revista: Medicina Tropical / Parasitologia Ano de publicação: 2010 Tipo de documento: Artigo