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Nutrients 2016, 8(9), 520; doi:10.3390/nu8090520

Iodine Nutritional Status of School Children in Nauru 2015

1
Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
2
Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei 11217, Taiwan
3
Institute of Public Health, National Yang-Ming University, Taipei 11217, Taiwan
4
Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
5
Division of Gastroenterology, Department of Internal Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan 33004, Taiwan
6
Institute of Clinical Medicine, National Yang-Ming University, Taipei 11217, Taiwan
7
Nauru Public Health Center, Republic of Nauru
8
Republic of Nauru Hospital, Republic of Nauru
9
Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
10
Department of Medicine, Yangming Branch, Taipei City Hospital, Taipei 11146, Taiwan
*
Author to whom correspondence should be addressed.
Received: 16 July 2016 / Revised: 16 August 2016 / Accepted: 18 August 2016 / Published: 23 August 2016
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Abstract

Little is known about iodine nutritional status in island countries in the Pacific Ocean. The primary objective of this study was to report for the first time the iodine nutritional status of people in Nauru. In addition, sources of iodine nutrition (i.e., water and salt) were investigated. A school-based cross-sectional survey of children aged 6–12 years was conducted in three primary schools of Nauru. Urinary iodine concentration (UIC) was determined by spot urine samples. Available water and salt samples in Nauru were collected for the measurement of iodine content. A food frequency questionnaire was conducted. The median UIC was 142 μg/L, and 25.2% and 7.4% of the population had median UIC below 100 μg/L and 50 μg/L, respectively. Natural iodine-containing foods such as seaweeds and agar were rare. Iodine was undetectable in Nauruan tank water, filtered tap water, and raindrops. Of the analyzed salt products, five kinds were non-iodized, and three were iodized (iodine content: 15 ppm, 65 ppm, and 68 ppm, respectively). The results indicate that the iodine status in Nauruan school children is adequate. Iodized salt may serve as an important source of iodine nutrition in Nauru. View Full-Text
Keywords: iodine; urinary iodine concentration; iodized salt; nutrition; Nauru iodine; urinary iodine concentration; iodized salt; nutrition; Nauru
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MDPI and ACS Style

Huang, C.-J.; Tseng, C.-L.; Chen, H.-S.; Garabwan, C.; Korovo, S.; Tang, K.-T.; Won, J.G.-S.; Hsieh, C.-H.; Wang, F.-F. Iodine Nutritional Status of School Children in Nauru 2015. Nutrients 2016, 8, 520.

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