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Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010

BACKGROUND: The primary route of exposure to methylmercury (MeHg), a known developmental neurotoxicant, is from ingestion of seafood. Since 2004, women of reproductive age in the U.S. have been urged to eat fish and shellfish as part of a healthy diet while selecting species that contain lower level...

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Autores principales: Cusack, Leanne K., Smit, Ellen, Kile, Molly L., Harding, Anna K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5316155/
https://www.ncbi.nlm.nih.gov/pubmed/28212649
http://dx.doi.org/10.1186/s12940-017-0218-4
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author Cusack, Leanne K.
Smit, Ellen
Kile, Molly L.
Harding, Anna K.
author_facet Cusack, Leanne K.
Smit, Ellen
Kile, Molly L.
Harding, Anna K.
author_sort Cusack, Leanne K.
collection PubMed
description BACKGROUND: The primary route of exposure to methylmercury (MeHg), a known developmental neurotoxicant, is from ingestion of seafood. Since 2004, women of reproductive age in the U.S. have been urged to eat fish and shellfish as part of a healthy diet while selecting species that contain lower levels MeHg. Yet few studies have examined trends in MeHg exposure and fish consumption over time in this group of women with respect to their geographical location in the U.S. METHODS: Data from six consecutive cycles of the National Health and Nutrition Examination Survey (NHANES), 1999–2010 (n = 9597) were used to determine trends in blood mercury for women aged 16–49 residing in different regions in the US, and according to age, race/ethnicity, income level, and fish consumption using geographic variables. RESULTS: Overall, mean blood mercury concentrations differed across survey cycles and mercury concentrations were lower in 2009–2010 compared to 1999–2000. There were regional patterns in fish consumption and blood Hg concentrations with women living in coastal regions having the highest fish consumption in the past 30 days and the highest blood Hg levels compared to women residing inland. CONCLUSIONS: On average, U.S. women of reproductive age were consuming more fish and blood mercury levels were lower in 2009–2010 compared to 1999–2000. However, efforts to encourage healthy fish consumption may need to be tailored to different regions in the U.S. given the observed spatial variability in blood mercury levels. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12940-017-0218-4) contains supplementary material, which is available to authorized users.
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spelling pubmed-53161552017-02-24 Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010 Cusack, Leanne K. Smit, Ellen Kile, Molly L. Harding, Anna K. Environ Health Research BACKGROUND: The primary route of exposure to methylmercury (MeHg), a known developmental neurotoxicant, is from ingestion of seafood. Since 2004, women of reproductive age in the U.S. have been urged to eat fish and shellfish as part of a healthy diet while selecting species that contain lower levels MeHg. Yet few studies have examined trends in MeHg exposure and fish consumption over time in this group of women with respect to their geographical location in the U.S. METHODS: Data from six consecutive cycles of the National Health and Nutrition Examination Survey (NHANES), 1999–2010 (n = 9597) were used to determine trends in blood mercury for women aged 16–49 residing in different regions in the US, and according to age, race/ethnicity, income level, and fish consumption using geographic variables. RESULTS: Overall, mean blood mercury concentrations differed across survey cycles and mercury concentrations were lower in 2009–2010 compared to 1999–2000. There were regional patterns in fish consumption and blood Hg concentrations with women living in coastal regions having the highest fish consumption in the past 30 days and the highest blood Hg levels compared to women residing inland. CONCLUSIONS: On average, U.S. women of reproductive age were consuming more fish and blood mercury levels were lower in 2009–2010 compared to 1999–2000. However, efforts to encourage healthy fish consumption may need to be tailored to different regions in the U.S. given the observed spatial variability in blood mercury levels. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12940-017-0218-4) contains supplementary material, which is available to authorized users. BioMed Central 2017-02-17 /pmc/articles/PMC5316155/ /pubmed/28212649 http://dx.doi.org/10.1186/s12940-017-0218-4 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Cusack, Leanne K.
Smit, Ellen
Kile, Molly L.
Harding, Anna K.
Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010
title Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010
title_full Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010
title_fullStr Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010
title_full_unstemmed Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010
title_short Regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing Age in the united states using NHANES data from 1999–2010
title_sort regional and temporal trends in blood mercury concentrations and fish consumption in women of child bearing age in the united states using nhanes data from 1999–2010
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5316155/
https://www.ncbi.nlm.nih.gov/pubmed/28212649
http://dx.doi.org/10.1186/s12940-017-0218-4
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