<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0186-2391</journal-id>
<journal-title><![CDATA[Acta pediátrica de México]]></journal-title>
<abbrev-journal-title><![CDATA[Acta pediatr. Méx]]></abbrev-journal-title>
<issn>0186-2391</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Pediatría]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0186-23912015000600442</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilidad de los ensayos de liberación de interferon gamma para la detección de tuberculosis en población pediátrica]]></article-title>
<article-title xml:lang="en"><![CDATA[Interferon gamma release assays for diagnosis of tuberculosis in pediatric population]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Hernández]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Meza]]></surname>
<given-names><![CDATA[Jehan Bonizú]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Candía-Plata]]></surname>
<given-names><![CDATA[María del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bolado-Martínez]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cano-Rangel]]></surname>
<given-names><![CDATA[Manuel Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durazo-Arvizu]]></surname>
<given-names><![CDATA[María de los Ángeles]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Soto]]></surname>
<given-names><![CDATA[Luis Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Sonora Departamento de Medicina y Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Infantil del Estado de Sonora  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Sonora Departamento de Ciencias Químico Biológicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>36</volume>
<numero>6</numero>
<fpage>442</fpage>
<lpage>455</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0186-23912015000600442&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0186-23912015000600442&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0186-23912015000600442&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: El ensayo de liberación de interferon gamma es un método novedoso para el diagnóstico de la tuberculosis aunque su utilidad es incierta en población pediátrica.  Objetivo:  examinar la utilidad diagnóstica del QuantiFERON-TB Gold (QFT-G®), uno de los ensayos de liberación de interferon gamma comerciales, en población pediátrica del Estado de Sonora, México.  Materiales y métodos:  estudio transversal con 160 menores de 19 años de edad, en un hospital de Sonora, México. Se compararon tres grupos, uno de pacientes con tuberculosis activa, otro con tuberculosis latente y uno más de controles hospitalizados. Los criterios de Stegen-Toledo fueron el estándar empleado. Se usó regresión logística multivariada para evaluar la asociación entre el QFT-G® y los predictores seleccionados.  Resultados:  la sensibilidad del QFT-G® en la tuberculosis activa fue de 76.9% y la especificidad de 90.3%. Fara la tuberculosis latente la sensibilidad fue 25.0% y la especificidad de 98.6%. El QFT-G® mostró una concordancia moderada (K = 0.574) con el estándar. También mostró asociación con la radiografía de tórax sugestiva de tuberculosis (razón de momios ajustada 4.37, IC 95%: 1.42, 13.42) y con el hecho de ser caso de tuberculosis pulmonar (razón de momios ajustada 6.15, IC 95%: 1.90, 19.92).  Conclusión:  el ensayo de liberación de interferón gamma es un método útil para diagnosticar tuberculosis activa y puede emplearse para descartar tuberculosis latente en población pediátrica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: The interferon-gamma release assay (IGRA) is a novel method for the diagnosis of tuberculosis (TB), but its usefulness is uncertain in children.  Objective:  Examine the diagnostic capacity of QuantiFERON-TB Gold (QFT-G®) one of the IGRA commercial kits, in pediatric population of Sonora, Mexico.  Methods:  Cross-sectional design with 160 subjects less than 19 years old, in a hospital in Sonora, Mexico. Three groups were compared: one from patients with active TB (TBA), another one with latent TB (TBL) and one of hospital controls. The Stegen-Toledo criteria were the gold standard used. Multivariate logistic regression was performed to test the association between QFT-G® and selected predictors.  Results:  The sensitivity of QFT-G® in TBA was 76.9% and specificity 90.3%. For TBL, sensitivity was 25.0% and specificity of 98.6%. QFT-G® showed a moderate agreement (K = 0.574) with the standard. QFT-G® was associated with a chest radiograph suggestive of TB, (OR adjusted 4.37, 95% CI: 1.42, 13.42) and being a case of pulmonary TB (OR adjusted 6.15, 95% CI: 1.90, 19.92).  Conclusion:  The interferon-gamma release assay shows significant capacity to diagnose TBA and can be used to rule out TBL in the pediatric population.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ensayos de liberación de interferón gamma]]></kwd>
<kwd lng="es"><![CDATA[tuberculosis en la infancia]]></kwd>
<kwd lng="es"><![CDATA[diagnóstico]]></kwd>
<kwd lng="en"><![CDATA[Interferon-gamma release assay]]></kwd>
<kwd lng="en"><![CDATA[Tuberculosis in childhood]]></kwd>
<kwd lng="en"><![CDATA[Diagnosis]]></kwd>
</kwd-group>
</article-meta>
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