4.3 Article Proceedings Paper

Iodine status in Danish pregnant and breastfeeding women including studies of some challenges in urinary iodine status evaluation

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ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.jtemb.2014.11.004

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Iodine; Pregnancy; Breastfeeding; Urinary iodine concentration; Urinary creatinine concentration

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Denmark was previously iodine deficient with regional differences. Moderate iodine deficiency appeared in West Denmark and mild iodine deficiency in East Denmark and also Danish pregnant and breastfeeding women suffered from iodine deficiency. The Danish mandatory iodine fortification of salt was introduced in the year 2000 and has increased iodine intake in the Danish population. However, median urinary iodine concentration in the general population and in pregnant and breastfeeding women is still below the level recommended, corresponding to mild iodine deficiency. Certain characteristics may challenge the evaluation of urinary iodine status in pregnancy and during breastfeeding. This review also addresses methodological challenges related to spot urine sampling conditions and the use of iodine supplement and discusses the use of non-pregnant population groups as a proxy for iodine intake in pregnant women. (C) 2014 Elsevier GmbH. All rights reserved.

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