Socioepidemiological screening of serologically ineligible blood donors due to Chagas disease for the definition of inconclusive cases
Mem. Inst. Oswaldo Cruz
; 105(6): 800-805, Sept. 2010. ilus
Article
em En
| LILACS
| ID: lil-560666
Biblioteca responsável:
BR1.1
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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Trypanosoma cruzi
/
Doadores de Sangue
/
Anticorpos Antiprotozoários
/
Doença de Chagas
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Adult
/
Female
/
Humans
/
Male
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de publicação:
Brasil