SciELO - Scientific Electronic Library Online

 
vol.10 suppl.2Evaluation of the efficacy of the Chagas' Disease Control Program: methodological aspectsFactors associated with household and family in leprosy transmission in Rio de Janeiro, Brazil author indexsubject indexarticles search
Home Page  

Cadernos de Saúde Pública

Print version ISSN 0102-311X

Abstract

BARRETO, Maurício L.  and  ANDRADE, Maria Eliane B.. Impact of Chagas' infection on some demographic characteristics: results of an ecological study. Cad. Saúde Pública [online]. 1994, vol.10, suppl.2, pp. S273-S280. ISSN 0102-311X.  http://dx.doi.org/10.1590/S0102-311X1994000800005.

This study aimed to analyze the impact of T. cruzi infection on some demographic characteristics in the State of Bahia. It is a place where Chagas' disease is endemic in general. In the endemic areas, similar infection rates were observed in males and females. However, males, mainly those aged 30 or more, had higher mortality rates than females. Analyses were conducted on a set of secondary data from several different sources. They included prevalence of T. cruzi infection, specific mortality related to Chagas' disease, and demographic characteristics. The data were aggregated at two different levels: municipality and homogeneous micro-regions. Significant positive correlations were observed between prevalence of T. cruzi infection and mortality rates. These indicators, in turn, were correlated with the proportion of widows and widowers in the population. Findings were higher for widows. In areas where prevalence of T. cruzi infection was 15% or greater, there were 22% more widows as compared to infection free areas. Places with high prevalence presented some skew in the age structure, and there was a consistent decrease in the proportion of males in the 35-44 age group. A possible confounding effect of migration on these finding was not demonstrated.

Keywords : Chagas' Disease; Trypanosoma cruzi Infection; Demographic Structure; Ecological Study.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese