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Revista Brasileira de Ginecologia e Obstetrícia. 2014;36(12):535-540
DOI 10.1590/So100-720320140005086
To analyze the spatial distribution of the prevalence of anti-toxoplasma gondii antibodies in pregnant women from a Brazilian Northeast city, and to correlate such prevalence with average maternal age and place of residence.
A descriptive, analytical and ecological study was conducted from January 1st to December 31st 2012. Data were obtained retrospectively from the Medical Specialties Center database and processed with the Epi info statistical package (Epi 7, Centers for Disease Control and Prevention, Atlanta, USA) and with Microsoft Excel 2010. The X2 test was applied to assess the association between the prevalence of antibodies to toxoplasma gondii and the average age. Spatial analysis of infection prevalence was performed using the TerraView software, version 4.2.2, with Kerneldensity estimation, which estimates the quantity of events through maps in order to identify areas with the highest concentration of cases in the city.
The seroprevalence of IgG was 68.5% (95%CI 67.2-69.8) and the prevalence of IgM was 0.36% (95%CI 0.23-0.6). A higher IgG prevalence was associated with increased age in the oldest neighborhoods of the state capital, whereas a higher IgG prevalence among younger women was detected in suburban neighborhoods. The spatial concentration of IgM antibodies was higher in suburban neighborhoods, with no significant correlation between seroprevalence and age.
Geoprocessing allowed the identification of areas with the highest prevalence, as well as the most susceptible average age and it was also useful as an instrument for the evaluation and implementation of appropriate preventive measures for this municipality and for other regions of Brazil.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2014;36(12):535-540
DOI 10.1590/So100-720320140005086
To analyze the spatial distribution of the prevalence of anti-toxoplasma gondii antibodies in pregnant women from a Brazilian Northeast city, and to correlate such prevalence with average maternal age and place of residence.
A descriptive, analytical and ecological study was conducted from January 1st to December 31st 2012. Data were obtained retrospectively from the Medical Specialties Center database and processed with the Epi info statistical package (Epi 7, Centers for Disease Control and Prevention, Atlanta, USA) and with Microsoft Excel 2010. The X2 test was applied to assess the association between the prevalence of antibodies to toxoplasma gondii and the average age. Spatial analysis of infection prevalence was performed using the TerraView software, version 4.2.2, with Kerneldensity estimation, which estimates the quantity of events through maps in order to identify areas with the highest concentration of cases in the city.
The seroprevalence of IgG was 68.5% (95%CI 67.2-69.8) and the prevalence of IgM was 0.36% (95%CI 0.23-0.6). A higher IgG prevalence was associated with increased age in the oldest neighborhoods of the state capital, whereas a higher IgG prevalence among younger women was detected in suburban neighborhoods. The spatial concentration of IgM antibodies was higher in suburban neighborhoods, with no significant correlation between seroprevalence and age.
Geoprocessing allowed the identification of areas with the highest prevalence, as well as the most susceptible average age and it was also useful as an instrument for the evaluation and implementation of appropriate preventive measures for this municipality and for other regions of Brazil.
