Estimation of risk areas for hepatitis A

Cadernos de saúde pública
Ricardo Cerqueira Campos BragaClaudia Caminha Escosteguy

Abstract

This study estimated hepatitis A risk areas in a region of Duque de Caxias, Rio de Janeiro State, Brazil. A cross-sectional study consisting of a hepatitis A serological survey and a household survey were conducted in 19 census tracts. Of these, 11 tracts were selected and 1,298 children from one to ten years of age were included in the study. Geostatistical techniques allowed modeling the spatial continuity of hepatitis A, non-use of filtered drinking water, time since installation of running water, and number of water taps per household and their spatial estimation through ordinary and indicator kriging. Adjusted models for the outcome and socioeconomic variables were isotropic; risk maps were constructed; cross-validation of the four models was satisfactory. Spatial estimation using the kriging method detected areas with increased risk of hepatitis A, independently of the urban administrative area in which the census tracts were located.

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Citations

Aug 29, 2014·Cadernos de saúde pública·Tatiana Prado, Marize Pereira Miagostovich
Jun 17, 2011·Epidemiology and Infection·D Gomez-BarrosoF Simón

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