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Sang Bong Jung  (Jung SB) 1 Article
Clinical Study
Excessive Iodine Status among School-Age Children in Korea: A First Report
Young Sik Choi, Soyoung Ock, Sukyoung Kwon, Sang Bong Jung, Kwang-Hyuk Seok, Young Jin Kim, Bu Kyung Kim, Jee-Yeong Jeong
Endocrinol Metab. 2017;32(3):370-374.   Published online September 18, 2017
DOI: https://doi.org/10.3803/EnM.2017.32.3.370
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  • 39 Download
  • 5 Citations
AbstractAbstract PDFPubReader   
Background

Korea is considered an iodine sufficient country, and several studies have been conducted regarding iodine status in healthy Korean adults, pregnant women, and preschool children. However, data on iodine status in Korean school-age children are lacking. Therefore, the iodine nutrition status of Korean school-age children was investigated by measuring urine iodine concentration (UIC).

Methods

This cross-sectional study conducted between April and September 2016 comprised 373 school-age children. UIC was determined using a modified microplate method employing ammonium persulfate digestion followed by Sandell-Kolthoff reaction.

Results

The median UIC was 458.2 µg/L. Excessive iodine intake (>300 µg/L) was found in 286 children (76.7%), with extremely high values exceeding 1,000 µg/L in 19.6% of subjects. Insufficient iodine intake (<100 µg/L) was observed in eight children (2.1%). UIC values were not significantly different between sexes.

Conclusion

Korean school-age children showed excessive iodine intake. Therefore, education regarding adequate iodine intake in school-age children is needed.

Citations

Citations to this article as recorded by  
  • Relationship of iodine excess with thyroid function in 6-year-old children living in an iodine-replete area
    Yun Jeong Lee, Sun Wook Cho, Youn-Hee Lim, Bung-Nyun Kim, Johanna Inhyang Kim, Yun-Chul Hong, Young Joo Park, Choong Ho Shin, Young Ah Lee
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
  • Excessive iodine status among school‐aged children in the State of Qatar: Results of the National Iodine Deficiency Disorder Survey
    Mohamed Hamad J. T. Al‐Thani, Salah Abdulla Sh. A. Alyafei, Kholoud Ateeq K. M. Al‐Motawaa, Shamseldin Ali Khalifa, Syed Hassan Bin Usman Shah, Benjamin Vinodson, Sureshbabu Kokku, Amit Mishra
    Public Health Challenges.2023;[Epub]     CrossRef
  • Changing Iodine Status and the Incidence of Thyroid Disease in Mainland China: A Prospective 20-Year Follow-Up Study
    Zhongyan Shan, Yushu Li, Yongze Li, Haoyu Wang, Di Teng, Xiaochun Teng, Wei Chong, Xiaoguang Shi, Jing Li, Jiahui Guo, Zhe Lou, Chenling Fan, Shuangning Ding, Li He, Hua Liu, Elizabeth N. Pearce, Weiping Teng
    Thyroid®.2023; 33(7): 858.     CrossRef
  • Association between urinary sodium levels and iodine status in Korea
    Jonghwa Ahn, Jang Ho Lee, Jiwoo Lee, Ji Yeon Baek, Eyun Song, Hye-Seon Oh, Mijin Kim, Suyeon Park, Min Ji Jeon, Tae Yong Kim, Won Bae Kim, Young Kee Shong, Won Gu Kim
    The Korean Journal of Internal Medicine.2020; 35(2): 392.     CrossRef
  • Effects of Maternal Iodine Status during Pregnancy and Lactation on Maternal Thyroid Function and Offspring Growth and Development: A Prospective Study Protocol for the Ideal Breast Milk Cohort
    Young Ah Lee, Sun Wook Cho, Ho Kyung Sung, Kyungsik Kim, Young Shin Song, Sin Je Moon, Jung Won Oh, Dal Lae Ju, Sooyeon Choi, Sang Hoon Song, Gi Jeong Cheon, Young Joo Park, Choong Ho Shin, Sue K. Park, Jong Kwan Jun, June-Key Chung
    Endocrinology and Metabolism.2018; 33(3): 395.     CrossRef
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