<?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>2565-005X</journal-id>
<journal-title><![CDATA[Gaceta mexicana de oncología]]></journal-title>
<abbrev-journal-title><![CDATA[Gac. mex. oncol.]]></abbrev-journal-title>
<issn>2565-005X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Oncología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2565-005X2021000200052</article-id>
<article-id pub-id-type="doi">10.24875/j.gamo.21000051</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prevalencia del cáncer de cabeza y cuello en el Hospital de Especialidades Eugenio Espejo en el periodo 2002-2015 en Quito, Ecuador]]></article-title>
<article-title xml:lang="en"><![CDATA[Prevalence of head and neck cancer in the Eugenio Espejo Specialties Hospital, period 2002-2015, Quito, Ecuador]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paltas-Miranda]]></surname>
<given-names><![CDATA[Mayra E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mushtaq-Wali]]></surname>
<given-names><![CDATA[Ahmad W.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Biazevic]]></surname>
<given-names><![CDATA[María Gabriela Haye]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central del Ecuador Facultad de Odontología ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Eugenio Espejo Servicio de Oncología ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de São Paulo Facultad de Odontología ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brasil</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>20</volume>
<numero>2</numero>
<fpage>52</fpage>
<lpage>61</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2565-005X2021000200052&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2565-005X2021000200052&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2565-005X2021000200052&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Determinar la prevalencia de cáncer de cabeza y cuello en el Servicio de Oncología del Hospital de Especialidades Eugenio Espejo, periodo 2002 al 2015.  Métodos: Es un estudio epidemiológico, analítico y transversal; los datos fueron tomados de las historias clínicas de pacientes atendidos con cáncer de cabeza y cuello, fueron registrados en una planilla de Excel, codificados y analizados en el paquete de estadística STATA versión 14.0, estadística descriptiva, los test de Chi cuadrada y de Poisson, con un nivel de significancia 0.05% y una confiabilidad del 95%.  Resultados: Existió una prevalencia discreta en sexo femenino con el 50.7%, la edad de 50-60 años el 20.3%, nivel de educación (primaria) el 53.1%, residencia «sierra» el 76.7%, ocupación quehaceres domésticos el 38.4%; la región anatómica cavidad bucal (36.4%); el tratamiento quirúrgico fue el 38.9%; tiempo de tratamiento hospitalario (de 1 a 180 días) el 44.5% y el 31.8% finalizó el tratamiento.  Conclusiones: El cáncer de cabeza y cuello prevaleció más en el sexo femenino entre la edad de 55 años ± 5 años. La mayoría era de la región sierra, con bajo nivel de instrucción, y realizaban quehaceres domésticos. La cavidad bucal fue la región anatómica más afectada.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To determine the prevalence of head and neck cancer in the Oncology Service of the Eugenio Espejo Hospital, from 2002 to 2015.  Methods: This is an epidemiological, analytical and cross-sectional study, the data was retrieved from the medical records of patients who were treated with head and neck cancer, all data was collected and transcribed onto an Excel spreadsheet, then coded and analyzed in STATA version 14.0. Descriptive Statistics and the Chi-square and Poisson tests were used with a level of significance of 0.05% at a level of confidence of 95%.  Results: There was a prevalence in female gender of 50.7%, the age from 50 to 60 years represented 20.3%, level of education (elementary) with 53.1%, place of residence (highlands) with 76.7%, occupation household chores with 38.4%, anatomical region oral cavity 36.4%, under surgical treatment 38.9%, the time of hospital treatment from 1 to 180 days 44.5% and 31.8% of the patients finished the treatment.  Conclusions: Head and neck cancer prevailed in the female gender in the age of 55, ± 5 years, most were from the Andean Mountain (Sierra) region with low level of instruction and whom perform household chores, The oral cavity was the most affected anatomical region.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cáncer]]></kwd>
<kwd lng="es"><![CDATA[Cabeza y cuello]]></kwd>
<kwd lng="es"><![CDATA[Tratamiento]]></kwd>
<kwd lng="es"><![CDATA[Epidemiología]]></kwd>
<kwd lng="en"><![CDATA[Cancer]]></kwd>
<kwd lng="en"><![CDATA[Head and neck]]></kwd>
<kwd lng="en"><![CDATA[Treatment]]></kwd>
<kwd lng="en"><![CDATA[Epidemiology]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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