Navegando por Assunto "Fatores interferentes"

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Interferentes bio-sócio-ambientais na exposição ao mercúrio em crianças ribeirinhas de diferentes regiões da Amazônia
(Universidade Federal do Pará, 2011-06-27) AMORAS, Walter Wanderley; SILVEIRA, Luiz Carlos de Lima; http://lattes.cnpq.br/9383834641490219
The present study examined possible bio-socio-environmental factors interfering in mercury exposure in children riverside. 103 children participated in the regions of the Tapajos and Acará Rivers and Marajó Island. The type of study was performed cross-sectional analysis. Hair samples were collected for analysis of the Hgtotal levels, blood (hemoglobin and hematocrit analysis) and faeces. Anthropometric indices were used to analyze children's growth. In the evaluation of psychomotor development test was applied modified Denver II screening. The highest average of Hgtotal levels in hair samples of children was in the Tapajós region (5.58 mg / g) and 0.65 g / g in other locations. The prevalence of Hgtotal> 10 mg / g was 25% and 7.5% in São Luiz do Tapajós and Barreiras. Daily consumption of fish by the families of the children as it relates to levels of Hgtotal p (value) was <0.05. The prevalence of breastfeeding duration in the groups of children under 12 months and greater than 6 months for locations in the Tapajos River, when Hgtotal related contents in hair of children with p (value) <0.05. The prevalence of anemia in the Tapajós region was 46.7% and when related to Hgtotal levels p (value) <0.0001. The parasitological tests indicated that 68.3% were multiinfested frequent when related Hgtotal p (value) <0.05. The profile of growth observed through the nutritional indicators status was 82.6% normal weight for age and 14.5% with very low weight and low. Psychomotor performance assessed by the Denver II screening test had changed five children as suspicions of developmental delays. It was concluded that in locations around the gold mining activities riverine children are at risk of mercury contamination. Bio-social- environmental factors interfering in exposure to mercury such as daily consumption of fish, length of breastfeeding, anemia, intestinal parasites showed significant statistical relationships with Hgtotal in the children's hair.