0214/2021 - Exposição ao mercúrio e anemia em crianças e adolescentes de seis comunidades da Amazônia Brasileira. Mercury exposure and anemia in children and adolescentssix riverside communities of Brazilian Amazon.
O mercúrio (Hg) é uma substância tóxica, sendo o consumo de pescados, uma das principais fontes de exposição da população. Este artigo visa avaliar a associação entre exposição ao Hg na população infanto-juvenil de seis comunidades ribeirinhas da Amazônia Brasileira e anemia. Realizou-se a análise secundária de dados de estudos seccionais, incluindo 1318 indivíduos, divididos em dois grupos segundo a influência do garimpo (grupo A sob influência e grupo B sem influência). Métodos de análise multivariada foram realizados para verificar a associação entre variável de exposição (Hg no cabelo) e anemia, estratificando pelos grupos. Foram observados 348 casos de anemia (27,1%), sendo 206 entre o grupo B e 142 entre o grupo A. Houve diferença na mediana dos níveis de Hg entre os grupos (A=12,8µg/g e B=4,3µg/g, p=0,01). Foi observada associação entre Hg no cabelo ? 6,0µg/g e anemia (OR=1,38; IC95%=1,02-1,87), fato que foi magnificado para o grupo A, quando realizada estratificação (OR=2,23; IC95%=1,28-3,90). O estudo mostrou elevados níveis de Hg, principalmente no grupo A e que esta substância pode ser um possível fator de risco para anemia. Ademais, as áreas geográficas pareceram modificar este efeito, apontando para influência de outros fatores, fato que deve ser melhor avaliado.
Palavras-chave:
Intoxicação por Mercúrio; Mercúrio; Anemia; Ecossistema Amazônico.
Abstract:
Mercury (Hg) is a toxic substance, and fish consumption is one of the main sources of exposure for the population. This article aims to evaluate the association between exposure to Hg in children and adolescentssix riverside communities in the Brazilian Amazon and anemia. Secondary data analysiscross-sectional studies, including 1318 individuals, divided into two groups according to gold mining exposure (group A under the influence and group B without it). Multivariate analysis methods were performed to assess the association between exposure to Hg (hair Hg) and anemia, stratifying by groups. Three hundred forty-eight anemia cases were observed (27.1%), with 206group B and 142 out of group A. There was a difference in the median of Hg levels between groups (A=12.8µg/g and B=4.3µg/g, p=0.01). An association was observed between hair Hg levels ≥ 6.0 µg/g and anemia (OR=1.38; 95%CI=1.02-1.87), a fact that was magnified for group A, when stratification was performed (OR=2.23; 95%CI=1.28-3.90). This study showed high Hg levels, especially in group A and this substance might be a possible risk factor for anemia. Also, geographical areas seemed to modify this effect, pointing to other factors\' influence, which should be better evaluated.
Mercury exposure and anemia in children and adolescentssix riverside communities of Brazilian Amazon.
Resumo (abstract):
Mercury (Hg) is a toxic substance, and fish consumption is one of the main sources of exposure for the population. This article aims to evaluate the association between exposure to Hg in children and adolescentssix riverside communities in the Brazilian Amazon and anemia. Secondary data analysiscross-sectional studies, including 1318 individuals, divided into two groups according to gold mining exposure (group A under the influence and group B without it). Multivariate analysis methods were performed to assess the association between exposure to Hg (hair Hg) and anemia, stratifying by groups. Three hundred forty-eight anemia cases were observed (27.1%), with 206group B and 142 out of group A. There was a difference in the median of Hg levels between groups (A=12.8µg/g and B=4.3µg/g, p=0.01). An association was observed between hair Hg levels ≥ 6.0 µg/g and anemia (OR=1.38; 95%CI=1.02-1.87), a fact that was magnified for group A, when stratification was performed (OR=2.23; 95%CI=1.28-3.90). This study showed high Hg levels, especially in group A and this substance might be a possible risk factor for anemia. Also, geographical areas seemed to modify this effect, pointing to other factors\' influence, which should be better evaluated.
Vianna, A. dos S., Câmara, V.M, Barbosa, M.C.M., Santos, A.S.E., Fróes Asmus, C.I.R.F., Luiz, R. R., Jesus, I.M.. Exposição ao mercúrio e anemia em crianças e adolescentes de seis comunidades da Amazônia Brasileira.. Cien Saude Colet [periódico na internet] (2021/jun). [Citado em 23/12/2024].
Está disponível em: http://cienciaesaudecoletiva.com.br/artigos/exposicao-ao-mercurio-e-anemia-em-criancas-e-adolescentes-de-seis-comunidades-da-amazonia-brasileira/18113?id=18113
