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Rev. salud pública ; 13(6): 998-1009, dic. 2011. ilus, tab
Article in Spanish | LILACS | ID: lil-625664

ABSTRACT

Objetivos Determinar la frecuencia de hipotiroidismo y su relación con anticuerpos antiperoxidasa y yoduria elevada, con la finalidad de realizar recomendaciones a las autoridades sanitarias sobre el consumo de sal yodada y detección temprana de enfermedad tiroidea. Métodos Participaron 437 personas de la población general de Armenia (Quindío). Se realizaron pruebas ELISA para Tiroxina-L, hormona estimulante de la tiroides, anticuerpos antiperoxidasa y análisis fotocolorimétrico para yoduria. Resultados La prevalencia de hipotiroidismo fue de 18,5 %. Los anticuerpos antiperoxidasa fueron positivos en el 28,9 %, con prevalencia significativamente más alta entre aquellos con hormona estimulante de la tiroides mayor a 10 uUI/ml comparados con valores de 5,1 a 10 uUI/ml (O.R 3,2) y en fumadores (O.R 3,4). La Tiroxina-L fue normal en el 98,2 % de participantes con hormona estimulante de la tiroides mayor a 5 uUI/ml y en el 92 % de aquellos con valores mayores a 10 uUI/ml. El promedio de yoduria fue de 565,1; niveles por encima de 300 µg/l se obtuvieron en un 81,8 % de los participantes. Conclusiones El aumento en la prevalencia de anticuerpos antiperoxidasa positivo a medida que aumentan los valores de hormona estimulante de la tiroides podría evidenciar una elevado riesgo en Armenia de desarrollo de hipotiroidismo de origen autoinmune; a pesar de los elevados niveles de yoduria, no se logró establecer relación con los niveles de anticuerpos antiperoxidasa ni de hormona estimulante de la tiroides.


Objectives Determining the prevalence of hypothyroidism and its interrelationship with peroxidase antibodies and high urinary iodine levels as a means for devising a set of recommendations for health authorities regarding the consumption of iodised salt and the early detection of thyroid disease. Methods 437 people in the municipality of Armenia (Quindío) participated in the study. ELISA tests were performed for free thyroxine, thyroid-stimulating hormone and thyroid peroxidase antibodies; a photocolorimetric analysis was carried out to determine urinary iodine levels. Results Hypothyroidism prevalence was 18.5%. Thyroid peroxidase antibodies were positive in 28.9% of the study population, with significantly higher prevalence amongst those with levels > 10 mIU/mL thyroid-stimulating hormone compared to 5.1 to 10 mIU/mL in those without it (OR 3.2) and smokers (O.R 3,4). Free thyroxine was normal in 98.2% of participants (> 5 mIU/mL thyroid-stimulating hormone levels) and 92% in those in whom > 10 mIU/mL thyroid-stimulating hormone levels were found. The average iodine level was 565.1; levels above 300µg/L were obtained in 81.8% of the participants. Conclusions Increased positive thyroid peroxidase antibody prevalence with increasing thyroid-stimulating hormone values could demonstrate a high risk of developing autoimmune hypothyroidism in Armenia; despite high iodine levels, a relationship with thyroid peroxidase antibodies or thyroid-stimulating hormone levels could not be established.


Subject(s)
Adult , Aged , Humans , Middle Aged , Autoantibodies/blood , Hypothyroidism/epidemiology , Iodine/urine , Thyroiditis, Autoimmune/epidemiology , Autoantigens/immunology , Colombia/epidemiology , Cross-Sectional Studies , Hypothyroidism/blood , Hypothyroidism/urine , Iodide Peroxidase/immunology , Prevalence , Risk Factors , Smoking/blood , Smoking/epidemiology , Thyroiditis, Autoimmune/blood , Thyroiditis, Autoimmune/urine , Thyrotropin/blood , Thyroxine/blood , Urban Population
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