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Iodine Status of a Population
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Median UIC
(μg/l)		Iodine IntakeIodine Status
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< 20insufficientsevere iodine deficiency
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20-49insufficientmoderate iodine deficiency
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50-99insufficientmild iodine deficiency
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100-199adequateadequate iodine nutrition
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200-299above requirementsslight risk of more than adequate intake for overall population
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≥300excessiverisk of adverse health consequences (hyperthyroidism, autoimmune thyroid diseases)
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Pregnancy
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< 150insufficient
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150-249adequate
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250-499above requirements
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≥500excessive
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p. 33 of WHO's Epidemiological Criteria for Assessing Iodine Nutrition Based on Median Urinary Iodine Concentrations of School-age Children (≥6 Years) and Adults
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Citation: World Health Organization. Assessment of Iodine Deficiency Disorders and Monitoring Their Elimination: A Guide for Programme Managers. World Health Organization. UNICEF. ICCIDD. 2007.
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