<?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>1665-5044</journal-id>
<journal-title><![CDATA[Revista mexicana de neurociencia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. neurocienc.]]></abbrev-journal-title>
<issn>1665-5044</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Neurología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-50442020000200041</article-id>
<article-id pub-id-type="doi">10.24875/rmn.19000133</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Attention deficit disorder, comorbidity, and treatment at the Hospital Psiquiátrico Infantil Dr. Juan N. Navarro, Mexico City]]></article-title>
<article-title xml:lang="es"><![CDATA[Trastorno por déficit de atención, comorbilidad y tratamiento en el Hospital Psiquiátrico Infantil Dr Juan N. Navarro, Ciudad de México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reséndiz-Aparicio]]></surname>
<given-names><![CDATA[Juan C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Poza-y Díaz]]></surname>
<given-names><![CDATA[María del P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arriaga-Cruz]]></surname>
<given-names><![CDATA[Esmeralda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nogales-Imaca]]></surname>
<given-names><![CDATA[Inés A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Becerra-Alcántara]]></surname>
<given-names><![CDATA[Dalia M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Rodríguez]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Ceniceros]]></surname>
<given-names><![CDATA[Michel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Psiquiátrico Infantil Dr. Juan N. Navarro Department of Pediatric Neurology ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Psiquiátrico Infantil Dr. Juan N. Navarro Department of Child Psychiatry ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>21</volume>
<numero>2</numero>
<fpage>41</fpage>
<lpage>48</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-50442020000200041&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-50442020000200041&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-50442020000200041&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Attention deficit hyperactivity disorder (ADHD) is the main motive for consultation at the Hospital Psiquiátrico Infantil.  Materials and methods: Prospective study analyzing patients with ADHD for 2 months.  Results: Recruited 555 patients, average age 8.7 (± 1.66) years, 485 (87.4%) males and 70 (12.6%) females. The most frequent subtype was combined in 440 (79.3%). We observed high comorbidity (68.1%), with externalizing disorders 143 (25.8%) patients and internalizing disorders 136 (24.5%). Epilepsy was found in eight patients. The most commonly used medications were methylphenidate for 485 cases (87.4%), followed by risperidone 45 (8.1%), fluoxetine 32 (5.8%), and without drug treatment 31 (5.6%). Mood stabilizers in 102 patients (18.4%), 32% received more than one drug. The most frequent combinations were methylphenidate with valproate, methylphenidate with risperidone, and methylphenidate with fluoxetine.  Conclusions: Males attend more frequently, and the most frequent subtype is combined. Comorbidity presented in almost 70%, most predominantly with the oppositional defiant disorder. Methylphenidate is the most commonly used drug in monotherapy or in combination.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: TDAH es el principal motivo de consulta en el Hospital Psiquiátrico Infantil.  Métodos: Analizamos pacientes con TDAH (DSM-5), durante dos meses.  Resultados: Reclutamos 555 pacientes, edad promedio de 8.7 (± 1.66) años, varones 485 (87.4%) y mujeres 70 (12.6%). El subtipo más frecuente, combinado 440 pacientes (79.3%). Observamos alta comorbilidad (68.1%), los trastornos externalizados en 143 pacientes (25.8%) y los internalizados 136 (24.5%). Epilepsia se encontró en 8 pacientes. Medicamento más empleado metilfenidato en 485 (87.4%), después risperidona 45 (8.1%), fluoxetina 32 (5.8%), sin tratamiento farmacológico 31 (5.6%). Modulador del afecto 102 pacientes (18.4%). El 32% recibían más de un fármaco. Combinaciones más frecuentes metilfenidato con valproato, metilfenidato con risperidona y metilfenidato con fluoxetina.  Conclusiones: Los varones acuden con mayor frecuencia, el subtipo más frecuente fue combinado. La comorbilidad ocupó casi el 70%, predominando el trastorno oposicionista desafiante. Metilfenidato es el fármaco de mayor uso en monoterapia o en combinación.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Attention deficit hyperactivity disorder]]></kwd>
<kwd lng="en"><![CDATA[Comorbidity]]></kwd>
<kwd lng="en"><![CDATA[Treatment]]></kwd>
<kwd lng="en"><![CDATA[Methylphenidate]]></kwd>
<kwd lng="es"><![CDATA[TDAH]]></kwd>
<kwd lng="es"><![CDATA[Comorbilidad]]></kwd>
<kwd lng="es"><![CDATA[Tratamiento]]></kwd>
<kwd lng="es"><![CDATA[Metilfenidato]]></kwd>
</kwd-group>
</article-meta>
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