| Autor: |
Bello TCS; Programa de Pós-Graduação em Ciências Ambientais e Conservação, Universidade Federal do Rio de Janeiro (UFRJ), Macaé 27965-045, Brazil., Buralli RJ; Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo (FMUSP), São Paulo 01246-903, Brazil., Cunha MPL; Programa de Pós-Graduação em Desenvolvimento Regional e Meio Ambiente, Universidade Federal de Rondônia (UNIR), Porto Velho 76801-058, Brazil., Dórea JG; Departamento de Nutrição, Universidade de Brasília (UnB), Brasilia 70970-000, Brazil., Diaz-Quijano FA; Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo (USP), São Paulo 01246-904, Brazil., Guimarães JRD; Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-170, Brazil., Marques RC; Programa de Pós-Graduação em Ciências Ambientais e Conservação, Universidade Federal do Rio de Janeiro (UFRJ), Macaé 27965-045, Brazil. |
| Abstrakt: |
Environmental contamination by mercury (Hg) is a problem of global scale that affects human health. This study's aim was to evaluate Hg exposure among women of reproductive age residing in the Madeira River basin, in the State of Rondônia, Brazilian Amazon. This longitudinal cohort study used linear regression models to assess the effects on Hg levels of breastfeeding duration at 6 months, and of breastfeeding duration and number of new children at 2-year and 5-year. Breastfeeding duration was significantly associated with maternal Hg levels in all regression models (6 months, 2 years and 5 years) and no significant association was observed between the number of children and the change in maternal Hg levels in the 2-year and 5-year models. This longitudinal cohort study evaluated Hg levels and contributing factors among pregnant women from different communities (riverine, rural, mining and urban) in Rondônia, Amazon Region, for 5 years. A well-coordinated and designed national biomonitoring program is urgently needed to better understand the current situation of Hg levels in Brazil and the Amazon. |
