<?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>2448-9190</journal-id>
<journal-title><![CDATA[Revista alergia México]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. alerg. Méx.]]></abbrev-journal-title>
<issn>2448-9190</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Inmunología Clínica y Alergia A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-91902021000200094</article-id>
<article-id pub-id-type="doi">10.29262/ram.v658i2.818</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Frecuencia y caracterización clínica de la urticaria crónica en un hospital de tercer nivel]]></article-title>
<article-title xml:lang="en"><![CDATA[Frequency and clinical characterization of chronic urticaria in a tertiary care hospital]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Coronado]]></surname>
<given-names><![CDATA[Bianca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa-García]]></surname>
<given-names><![CDATA[Itzel Vianey]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Lozano]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quintero-Ramos]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega-Cisneros]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional de Occidente Departamento de Inmunología Clínica y Alergia]]></institution>
<addr-line><![CDATA[Guadalajara Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias de la Salud Laboratorio de Inmunología]]></institution>
<addr-line><![CDATA[Guadalajara Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>68</volume>
<numero>2</numero>
<fpage>94</fpage>
<lpage>100</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-91902021000200094&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-91902021000200094&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-91902021000200094&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo:  Estimar la frecuencia de la urticaria crónica en pacientes que acudieron a un servicio de alergología en un hospital de tercer nivel; complementariamente, se hace una descripción de las principales características clínicas.  Métodos:  Se analizaron un total de 96 pacientes con UC espontánea y UC inducible, con edad &gt; 18 años, en un lapso de 7 meses.  Resultados:  La frecuencia de UC fue de 1.31 % (n = 98); 53 % se asociaron con alguna enfermedad alérgica y 54 % mostró algún tipo de alteración en los estudios paraclínicos. En 80 % de los pacientes, la urticaria fue crónica espontánea y en 62 % se vio asociada con angioedema. El 19 % de los casos obtuvo control de la UC con el uso de un solo antihistamínico.  Conclusiones:  La frecuencia de UC en nuestro estudio fue inferior con respecto a la informada a nivel nacional.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To estimate the frequency of chronic urticaria in patients who attended an allergy service in a tertiary care hospital; in addition, the main clinical characteristics are described.  Methods: In a period of 7 months, a total of 96 patients who were over 18 years of age were analyzed; they had been diagnosed with chronic spontaneous urticaria and chronic inducible urticaria.  Results:  The frequency of chronic urticaria was of 1.31 % (n=98); 53 % were associated with some allergic pathology, and 54 % showed an alteration in the paraclinical tests. Chronic spontaneous urticaria was found in 80 % of the patients; and in 62 % of them, the urticaria was associated with angioedema. Chronic urticaria was controlled in 19 % of the studied population with the use of a single antihistamine.  Conclusions: The frequency of chronic urticaria in our study was lower than the frequency reported nationwide.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Urticaria crónica]]></kwd>
<kwd lng="es"><![CDATA[Prevalencia de urticaria]]></kwd>
<kwd lng="es"><![CDATA[Enfermedad alérgica]]></kwd>
<kwd lng="es"><![CDATA[Angioedema]]></kwd>
<kwd lng="en"><![CDATA[Chronic urticaria]]></kwd>
<kwd lng="en"><![CDATA[Urticaria prevalence]]></kwd>
<kwd lng="en"><![CDATA[Allergic disease]]></kwd>
<kwd lng="en"><![CDATA[Angioedema]]></kwd>
</kwd-group>
</article-meta>
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