ArticleEuropean journal of nutrition2019
Urinary iodine concentration and thyroid hormones: Korea National Health and Nutrition Examination Survey 2013-2015.
Article in European journal of nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Iodine Intake and Risk of Mortality: Evidence from a Nationally Representative Korean Cohort.Nutrients · 2025Article
- Iodine Excess Is Associated with Thyroid Dysfunction Among the Elderly.Biological trace element research · 2025Observational
- Iodine Status and Its Influencing Factors in Hospitalized and Healthy Preschool-Age Children.Biological trace element research · 2025Article
- Iodine intake from brown seaweed and the related nutritional risk assessment in Koreans.Nutrition research and practice · 2024Article
- Prospective study to evaluate radioactive iodine of 20 mCi vs 10-15 mCi in Graves' disease.BMC endocrine disorders · 2024Article
- Prevalence, Treatment Status, and Comorbidities of Hyperthyroidism in Korea from 2003 to 2018: A Nationwide Population Study.Endocrinology and metabolism (Seoul, Korea) · 2023Observational
- Relationship of iodine excess with thyroid function in 6-year-old children living in an iodine-replete area.Frontiers in endocrinology · 2023Article
- Impact of urinary iodine concentration on blood glucose levels and blood pressure: a nationwide population-based study.European journal of nutrition · 2022Article
- Article
- Why an Increase of TSH in Populations With Initially Mild-to-Moderate Iodine Deficiency Can Be Good News.Frontiers in nutrition · 2022Article
- Iodine nutritional status, the prevalence of thyroid goiter and nodules in rural and urban residents: a cross-sectional study from Guangzhou, China.Endocrine connections · 2021Article
- Evaluation of Iodine Status among Korean Patients with Papillary Thyroid Cancer Using Dietary and Urinary Iodine.Endocrinology and metabolism (Seoul, Korea) · 2021Article
- Spot urine iodine levels below the WHO recommendation are not related to impaired thyroid function in healthy children and adolescents.European journal of nutrition · 2021Article
- Association of breastfeeding with thyroid function and autoimmunity in postmenopausal women.Endocrine · 2021Article
- A Survey of UK Centres on Low Iodine Diet Recommendations prior to Radioiodine Ablation Therapy for Differentiated Thyroid Cancer.European thyroid journal · 2020Article
- Update on Thyroid Hormone Levels and Thyroid Dysfunction in the Korean Population Based on Data from the Korea National Health and Nutrition Examination Survey VI (2013 to 2015).Endocrinology and metabolism (Seoul, Korea) · 2020Review
- Article
- Non-immune-related hypothyroidism and its relationship with excess iodine.European journal of nutrition · 2019Article
- High Normal Range of Free Thyroxine is Associated with Decreased Triglycerides and with Increased High-Density Lipoprotein Cholesterol Based on Population Representative Data.Journal of clinical medicine · 2019Article
- Iodine status of euthyroid adults: A cross-sectional, multicenter study.Journal of clinical laboratory analysis · 2019Article
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Authors and funding
8 authors.
Funding
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Abstract
purposeAn epidemiologic study that evaluated population's iodine nutrition status and its relationship with thyroid hormones is lacking in iodine-sufficient area. This nationwide study aimed to evaluate the iodine nutrition status in Korea and relationship between urine iodine concentration (UIC) and thyroid hormones.
methodsA total of 8318 subjects of the Korea National Health and Nutrition Examination Survey VI (2013-2015) with UIC and thyroid hormone evaluation were included. Median UIC level and estimated 24-h iodine intake were calculated. The prevalence of iodine deficiency or excess was obtained using estimated average requirement or above the tolerable upper intake level cut-point method by estimated iodine intake. We analyzed UIC with regard to age, sex, social economic status, and geographic characteristics.
resultsThe median UIC in general population and estimated iodine intake in adult population were 293.9 μg/L (above requirement according to World Health Organization classification) and 249.3μg/day, respectively. The prevalence of iodine deficiency and excess was 14.0 and 13.4%. The median UIC was higher among SAC [511 (299.9-948.5)] and lower among seventies [251.2 (98.9-761.6)] compared to other age groups. The median UIC increased with household income level (p for trend < 0.001). The subjects living in rural and inland region had lowest UIC among the enrolled subjects. The subgroups with higher median UIC were associated with higher mean TSH levels.
conclusionsThis first nationwide study in Korea demonstrated that the median of UIC and estimated iodine intake lie at nearly 300 µg/L and 250 µg/day, respectively, which shows an overall excellent iodine nutrition.
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