| Iodine status in pregnancy and household salt iodine content in rural Bangladesh. | |
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MedLine Citation:
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PMID: 20977661 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Adequate maternal iodine intake is essential during pregnancy for the development of the foetus. To assess the extent of iodine insufficiency and its association with household iodized salt in rural Bangladesh, we measured urinary iodine and household salt iodine content among pregnant women in early (≤16 weeks, n = 1376) and late (≥32 weeks, n = 1114) pregnancy. Salt (∼20 g) and a spot urine sample (∼10 mL) were collected from women participating in a randomized, placebo-controlled trial of vitamin A or beta-carotene supplementation in rural northwestern Bangladesh during home visits in early and late pregnancy. Salt iodine was analyzed by iodometric titration, and urinary iodine by the Ohashi method. Almost all salt samples had some detectable iodine, but over 75% contained <15 ppm. Median (interquartile range) urinary iodine concentrations were 66 (34-133) and 55 (28-110) µg L(-1) in early and late pregnancy, respectively; urinary iodine <150 µg L(-1) was found in ∼80% of women at both times in pregnancy. Although the risk of iodine insufficiency declined with increasing iodine content of household salt (P for trend <0.05), median urinary iodine did not reach 150 µg L(-1) until iodine in household salt was at least 32 ppm and 51 ppm during early and late pregnancy, respectively. Despite a national policy on universal salt iodization, salt iodine content remains insufficient to maintain adequate maternal iodine status throughout pregnancy in rural northern Bangladesh. Alternative measures like direct iodine supplementation during pregnancy could be considered to assure adequate iodine status during this high-risk period of life. |
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Authors:
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Abu Ahmed Shamim; Parul Christian; Kerry J Schulze; Hasmot Ali; Alamgir Kabir; Mahbubur Rashid; Alain Labrique; Qauzi Salamatullah; Keith P West |
Publication Detail:
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Type: Journal Article Date: 2010-10-26 |
Journal Detail:
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Title: Maternal & child nutrition Volume: 8 ISSN: 1740-8709 ISO Abbreviation: Matern Child Nutr Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-03-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101201025 Medline TA: Matern Child Nutr Country: England |
Other Details:
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Languages: eng Pagination: 162-73 Citation Subset: IM |
Copyright Information:
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© 2010 Blackwell Publishing Ltd. |
Affiliation:
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The JiVitA Maternal and Child Research Project, Godown Road, Gaibandha-5700, Gaibandha, Bangladesh Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, Maryland 21205, USA Institute of Nutrition and Food Science, Dhaka Uinversity, Dhaka-1000, Bangladesh. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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