Iodine nutrition in elementary state schools of Queretaro, Mexico: correlations between urinary iodine concentration with global nutrition status and social gap index
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- Pablo García-Solís
- Universidad Autónoma de Querétaro, México
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- Juan Carlos Solís-S
- Universidad Autónoma de Querétaro, México
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- Ana Cristina García-Gaytán
- Universidad Autónoma de Querétaro, México
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- Vanessa A. Reyes-Mendoza
- Universidad Autónoma de Querétaro, México
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- Ludivina Robles-Osorio
- Universidad Autónoma de Querétaro, México
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- Enrique Villarreal-Ríos
- Instituto Mexicano del Seguro Social, México
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- Luisa Leal-García
- Universidad Autónoma de Querétaro, México
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- Hebert Luis Hernández-Montiel
- Universidad Autónoma de Querétaro, México
Abstract
<jats:p>OBJECTIVE AND METHODS: To estimate median urinary iodine concentration (UIC), and to correlate it with global nutrition indicators and social gap index (SGI) in 50 elementary state schools from 10 municipalities in the State of Queretaro, Mexico. RESULTS: 1,544 students were enrolled and an above of requirements of iodine intake was found (median UIC of 297 µg/L). Iodine status was found as deficient, adequate, more than adequate and excessive in 2, 4, 19 and 25 schools, respectively. Seventy seven percent of table salt samples showed adequate iodine content (20-40 ppm), while 9.6% of the samples had low iodine content (< 15 ppm). Medians of UIC per school were positively correlated with medians of body mass index (BMI) by using the standard deviation score (SDS) (r = 0.47; p < 0.005), height SDS (r = 0.41; p < 0.05), and overweight and obesity prevalence (r = 0.41; p < 0.05). Medians of UIC per school were negatively correlated with stunting prevalence (r = -0.39; p = 005) and social gap index (r = -0.36; p < 0.05). Best multiple regression models showed that BMI SDS and height were significantly related with UIC (p < 0.05). CONCLUSIONS: There is coexistence between the two extremes of iodine intake (insufficient and excessive). To our knowledge, the observed positive correlation between UIC and overweight and obesity has not been described before, and could be explained by the availability and consumption of snack food rich in energy and iodized salt.</jats:p>
Journal
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- Arquivos Brasileiros de Endocrinologia & Metabologia
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Arquivos Brasileiros de Endocrinologia & Metabologia 57 (6), 473-482, 2013-08
FapUNIFESP (SciELO)
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Details 詳細情報について
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- CRID
- 1363951794067490176
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- ISSN
- 00042730
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- Data Source
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- Crossref