High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico

According to the Iodine Global Network, Mexico is considered a country with adequate national iodine intake (297 mg/L), but some regions have not been studied. We aimed to evaluate urinary iodine concentration (UIC) and its association with thyroid stimulating hormone (TSH) levels and the nutritiona...

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Autores principales:	Aidy Gonzalez-Nunez, Pablo García-Solís, Silvia G. Ramirez-Garcia, German Flores-Ramirez, Marcela Vela-Amieva, Victor J. Lara-Díaz, Augusto Rojas-Martínez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	iodine thyroid nutrition Nutrition. Foods and food supply TX341-641
Acceso en línea:	https://doaj.org/article/093c6d705372469eb11267818c998af3
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spelling	oai:doaj.org-article:093c6d705372469eb11267818c998af32021-11-25T18:35:44ZHigh Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico10.3390/nu131139752072-6643https://doaj.org/article/093c6d705372469eb11267818c998af32021-11-01T00:00:00Zhttps://www.mdpi.com/2072-6643/13/11/3975https://doaj.org/toc/2072-6643According to the Iodine Global Network, Mexico is considered a country with adequate national iodine intake (297 mg/L), but some regions have not been studied. We aimed to evaluate urinary iodine concentration (UIC) and its association with thyroid stimulating hormone (TSH) levels and the nutritional status in 307 children (aged 5 to 11 years) from three elementary schools of Monterrey, northern Mexico. UIC in spot urine samples and capillary TSH levels were measured to assess thyroid function, in addition to weight, height, body mass index (BMI), and waist circumference (WC). We found a median UIC of 442 mg/L and a significant association between UIC and TSH levels by logistic regression when data were adjusted for (1) age and sex; (2) age, sex, and WC; and (3) age, sex, and weight status. UIC values were higher in 7-year-old children compared to 11-year-old children. High prevalences of overweight/obesity (41%) and WC >90 pctl (22%) were observed. This study identified higher UIC levels in children than those previously reported in the country. The UIC showed a positive and significant correlation between TSH levels in the three models evaluated. More studies are needed to assess the causes and possible outcomes of high UIC levels.Aidy Gonzalez-NunezPablo García-SolísSilvia G. Ramirez-GarciaGerman Flores-RamirezMarcela Vela-AmievaVictor J. Lara-DíazAugusto Rojas-MartínezMDPI AGarticleiodinethyroidnutritionNutrition. Foods and food supplyTX341-641ENNutrients, Vol 13, Iss 3975, p 3975 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	iodine thyroid nutrition Nutrition. Foods and food supply TX341-641
spellingShingle	iodine thyroid nutrition Nutrition. Foods and food supply TX341-641 Aidy Gonzalez-Nunez Pablo García-Solís Silvia G. Ramirez-Garcia German Flores-Ramirez Marcela Vela-Amieva Victor J. Lara-Díaz Augusto Rojas-Martínez High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico
description	According to the Iodine Global Network, Mexico is considered a country with adequate national iodine intake (297 mg/L), but some regions have not been studied. We aimed to evaluate urinary iodine concentration (UIC) and its association with thyroid stimulating hormone (TSH) levels and the nutritional status in 307 children (aged 5 to 11 years) from three elementary schools of Monterrey, northern Mexico. UIC in spot urine samples and capillary TSH levels were measured to assess thyroid function, in addition to weight, height, body mass index (BMI), and waist circumference (WC). We found a median UIC of 442 mg/L and a significant association between UIC and TSH levels by logistic regression when data were adjusted for (1) age and sex; (2) age, sex, and WC; and (3) age, sex, and weight status. UIC values were higher in 7-year-old children compared to 11-year-old children. High prevalences of overweight/obesity (41%) and WC >90 pctl (22%) were observed. This study identified higher UIC levels in children than those previously reported in the country. The UIC showed a positive and significant correlation between TSH levels in the three models evaluated. More studies are needed to assess the causes and possible outcomes of high UIC levels.
format	article
author	Aidy Gonzalez-Nunez Pablo García-Solís Silvia G. Ramirez-Garcia German Flores-Ramirez Marcela Vela-Amieva Victor J. Lara-Díaz Augusto Rojas-Martínez
author_facet	Aidy Gonzalez-Nunez Pablo García-Solís Silvia G. Ramirez-Garcia German Flores-Ramirez Marcela Vela-Amieva Victor J. Lara-Díaz Augusto Rojas-Martínez
author_sort	Aidy Gonzalez-Nunez
title	High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico
title_short	High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico
title_full	High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico
title_fullStr	High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico
title_full_unstemmed	High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico
title_sort	high iodine urinary concentration is associated with high tsh levels but not with nutrition status in schoolchildren of northeastern mexico
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/093c6d705372469eb11267818c998af3
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High Iodine Urinary Concentration Is Associated with High TSH Levels but Not with Nutrition Status in Schoolchildren of Northeastern Mexico

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