Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001

Background: In Chile, the recommendation for salt iodination was reduced from 100 to 40 ppm, after detecting high urinary iodine excretion in school age children. Aim: To assess iodine nutrition in school age children after the modification of salt iodination. Subjects and methods: Iodine nutrition...

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Autores principales:	Muzzo B,Santiago, Ramírez M,Iván, Carvajal L,Fresia, Biolley H,Edith, Leiva B,Laura
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2003
Materias:	Endemic Goiter Iodine
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001200005
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spelling	oai:scielo:S0034-988720030012000052004-04-16Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001Muzzo B,SantiagoRamírez M,IvánCarvajal L,FresiaBiolley H,EdithLeiva B,Laura Endemic Goiter Iodine Background: In Chile, the recommendation for salt iodination was reduced from 100 to 40 ppm, after detecting high urinary iodine excretion in school age children. Aim: To assess iodine nutrition in school age children after the modification of salt iodination. Subjects and methods: Iodine nutrition was studied in 3712 school age Chilean children of primary level in 4 areas (Calama, Santiago, Temuco and Punta Arenas) through palpation of thyroid gland, urinary iodine excretion and iodine concentration in salt for human consumption of the surveyed areas. Results: A 6.4% goiter prevalence was found (5,9% in boys and 6,8% in girls). Grade Ia goiter was more common (5.0%), without detecting differences between areas (7.3% in Calama, 5.9% in Santiago, 5.9 in Temuco and 6.7 in Punta Arenas). Iodine concentration in salt for human consumption of the areas was adequate according to the recent modification of Chilean legislation (25.4 mgI/g salt in Calama, 36.2 in Santiago, 27.7 in Temuco and 33.4 in Punta Arenas). Urinary iodine excretion was very high according to recommendation in boys and girls (2838 and 2852 mgI/g salt in Calama, 700 and 837 in Santiago, 1318 and 1438 in Temuco, 407 and 312 in Punta Arenas). Conclusions: Endemic goiter is not longer a problem in Chile. Salt iodination is in agreement with present legislation. However, urinary iodine excretion increased in Calama and Temuco, did not change in Santiago and decreased only in Punta Arenas in spite of the changes in the legislation. It is necessary to investigate the causes of the high urinary iodine excretions detected in school age children, and it is very important to have a continuous surveillance of iodine nutrition in Chile (Rev Méd Chile 2003; 131: 1390-8).info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.131 n.12 20032003-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001200005es10.4067/S0034-98872003001200005
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Endemic Goiter Iodine
spellingShingle	Endemic Goiter Iodine Muzzo B,Santiago Ramírez M,Iván Carvajal L,Fresia Biolley H,Edith Leiva B,Laura Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001
description	Background: In Chile, the recommendation for salt iodination was reduced from 100 to 40 ppm, after detecting high urinary iodine excretion in school age children. Aim: To assess iodine nutrition in school age children after the modification of salt iodination. Subjects and methods: Iodine nutrition was studied in 3712 school age Chilean children of primary level in 4 areas (Calama, Santiago, Temuco and Punta Arenas) through palpation of thyroid gland, urinary iodine excretion and iodine concentration in salt for human consumption of the surveyed areas. Results: A 6.4% goiter prevalence was found (5,9% in boys and 6,8% in girls). Grade Ia goiter was more common (5.0%), without detecting differences between areas (7.3% in Calama, 5.9% in Santiago, 5.9 in Temuco and 6.7 in Punta Arenas). Iodine concentration in salt for human consumption of the areas was adequate according to the recent modification of Chilean legislation (25.4 mgI/g salt in Calama, 36.2 in Santiago, 27.7 in Temuco and 33.4 in Punta Arenas). Urinary iodine excretion was very high according to recommendation in boys and girls (2838 and 2852 mgI/g salt in Calama, 700 and 837 in Santiago, 1318 and 1438 in Temuco, 407 and 312 in Punta Arenas). Conclusions: Endemic goiter is not longer a problem in Chile. Salt iodination is in agreement with present legislation. However, urinary iodine excretion increased in Calama and Temuco, did not change in Santiago and decreased only in Punta Arenas in spite of the changes in the legislation. It is necessary to investigate the causes of the high urinary iodine excretions detected in school age children, and it is very important to have a continuous surveillance of iodine nutrition in Chile (Rev Méd Chile 2003; 131: 1390-8).
author	Muzzo B,Santiago Ramírez M,Iván Carvajal L,Fresia Biolley H,Edith Leiva B,Laura
author_facet	Muzzo B,Santiago Ramírez M,Iván Carvajal L,Fresia Biolley H,Edith Leiva B,Laura
author_sort	Muzzo B,Santiago
title	Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001
title_short	Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001
title_full	Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001
title_fullStr	Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001
title_full_unstemmed	Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001
title_sort	nutrición de yodo en escolares de cuatro zonas de chile en el año 2001
publisher	Sociedad Médica de Santiago
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001200005
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Nutrición de yodo en escolares de cuatro zonas de Chile en el año 2001

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