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1.
Salud Publica Mex ; 45(4): 269-75, 2003.
Article in Spanish | MEDLINE | ID: mdl-12974044

ABSTRACT

OBJECTIVE: To assess the differences in the blood concentration levels of the thyroid stimulating hormone and their possible use as an indicator of iodine sufficiency, in a sample of Mexican newborns. MATERIAL AND METHODS: A cross-sectional study was conducted from September 1999 to August 2000, among 25,427 Mexican newborns in the Ministry of Health clinics from 5 states. A total of 8,095 heel-prick and 17,332 umbilical cord blood samples were analyzed. Blood samples were collected in filter paper and processed by enzyme-linked immunosorbent assay. The Mann-Whitney U test and the Kruskal-Wallis test were used for statistical analyses. RESULTS: Hyperthyrotropinemia was found in 9.95% of heel samples and in 24.27% of umbilical cord samples (TSH > 5 microUl/ml). CONCLUSIONS: The percentage of hyperthyrotropinemia observed in this study was higher than that expected in a population with sufficient iodine intake; these findings could be due to poor maternal iodine intake.


Subject(s)
Hypothyroidism/blood , Neonatal Screening , Thyrotropin/deficiency , Cross-Sectional Studies , Female , Humans , Hypothyroidism/diagnosis , Hypothyroidism/prevention & control , Infant, Newborn , Male , Mexico , Thyrotropin/blood
2.
Salud pública Méx ; 45(4): 269-275, jul.-ago. 2003. tab, graf
Article in Spanish | LILACS | ID: lil-349875

ABSTRACT

OBJETIVO: Comunicar las diferencias encontradas en los niveles de concentración sanguínea de la hormona estimulante de la tiroides y su posible uso como indicador del estado de suficiencia de yodo en una muestra de recién nacidos mexicanos. MATERIAL Y MÉTODOS: De septiembre de 1999 a agosto de 2000 se estudiaron 25 427 recién nacidos en unidades asistenciales de la Secretaría de Salud de cinco estados de la República Mexicana. Se analizaron 8 095 muestras de sangre de talón y 17 332 de cordón umbilical. La sangre fue recolectada en papel filtro y procesada mediante ensayo inmunoenzimático. Para el análisis estadístico se emplearon las pruebas U de Mann-Wittney, y de Kruskal-Wallis. RESULTADOS: Se observó que 9.95 por ciento de las muestras de talón y 24.27 por ciento de las de cordón presentaron hipertirotropinemia (TSH>5 æUI/ml). CONCLUSIONES: El porcentaje de muestras de hipertirotropinemia observado es mayor del esperado para una población con aporte suficiente de yodo. Este hallazgo pudiera deberse a una deficiencia en la ingesta materna de yodo


Subject(s)
Female , Humans , Infant, Newborn , Male , Hypothyroidism/blood , Neonatal Screening , Thyrotropin/deficiency , Cross-Sectional Studies , Hypothyroidism/diagnosis , Hypothyroidism/prevention & control , Mexico , Thyrotropin/blood
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